Justice DURHAM, opinion of the Court:
INTRODUCTION
1 1 Basic Research, LLC, along with related corporations and officers thereof (Basic Research), appeals the district courts grant of summary judgment in favor of Admiral Insurance (Admiral). Basic Research argues that in finding that Admiral had no duty to defend it against the underlying claims, the district court interpreted provisions of Basic Researchs insurance policy too narrowly. We affirm.
BACKGROUND
T2 Basic Research is a limited liability company organized and existing under the laws of Utah. Its principal place of business is located in Salt Lake City, Utah. Basic Research markets the weight-loss product Akivar, using the slogans Eat All You Want And Still Lose Weight and And we couldnt say it in print if it wasnt true! (the slogans). Customers who purchased Akkvar filed lawsuits in multiple federal and state jurisdictions, all claiming false advertising, defective product, and/or failure to perform as promised (the underlying claims).
3 Basic Research was insured by Admiral under two consecutive Commercial General Liability insurance policies (the Policy). A portion of the Policy provided coverage for Personal and Advertising Injury, defined relevant terms, and contained a list of types of claims specifically excluded from coverage. After the underlying claims were filed, Basic Research invoked its coverage and asked Admiral to defend it. Admiral refused to defend on the premise that the underlying claims were not covered by the terms of the Policy.
{4 Basic Research sued Admiral for declaratory relief. Both parties filed motions for summary judgment. The district court denied Basic Researchs motion for summary judgment and granted Admirals, finding that the underlying claims were not covered by the terms of the Policy and were in fact specifically excluded. Basic Research timely appealed. We have jurisdiction under Utah Code section 78A-3-1028)(J).
STANDARD OF REVIEW
15 Summary judgment is appropriate only where there are no genuine issues of material fact and the moving party is entitled to judgment as a matter of law. UtaxK R. Civ. P. 56(c). We review a district courts grant of summary judgment for correctness and afford no deference to the courts legal conclusions. Salk Lake City Corp. v. Big Ditch Irrigation Co., 2011 UT 33, ¶ 18, 258 P.3d 539. When the existence of a contract and the identity of the parties are not in issue and when the contract provisions are clear and complete, the meaning of the contract can appropriately be resolved by the court on summary judgment. Morris v. Mountain States Tel. & Tel. Co., 658 P.2d 1199, 1201 (Utah 1988). Furthermore, the interpretation of a contract is a question of law that is reviewed for correctness, giving no deference to the district court. Saleh v. Farmers Ins. Exch., 2006 UT 20, 114, 133 P.3d 428.
ANALYSIS
T6 Basic Research argues that the district court interpreted the Policy terms too narrowly in concluding that the underlying offenses were not indemnified. For the following reasons, we agree with the district court that the underlying claims are not covered by the Policy. In fact, claims of this type are specifically excluded. Therefore, Admiral did not have a duty to defend Basic Research.
17 In Utah, an insurer has a duty to defend when the insurer ascertains facts giving rise to potential liability under the insurance policy. Sharon Steel Corp. v. Aetna Cas. & Sur. Co., 981 P.2d 127, 188 (Utah1997). Where the allegations, if proved, show there is no potential lability [under the policy], there is no duty to defend. Deseret Fed. Sav. & Loan Assn v. U.S. Fid. & Guar. Co., 714 P.2d 1148, 1147 (Utah 1986). The question of whether there is potential liability under the policy is determined by comparing the language of the insurance policy with the allegations of the complaint. Benjamin v. Amico Mut. Ins. Co., 2006 UT 37, ¶ 16, 140 P.3d 1210 (internal quotation marks omitted). The question is whether the allegations, if proved, could result in liability under the policy. Deseret, 714 P.2d at 1147. If the language found within the collective eight corners of these documents clearly and unambiguously indicates that a duty to defend does or does not exist, the analysis is complete. Equine Assisted Growth & Learning Assn v. Carolina Cas. Ins. Co., 2011 UT 49, ¶ 18, 266 P.3d 733. When interpreting a contract, a court looks within the four corners of the contract to determine the parties intentions, which are controlling. Inmerlight, Inc. v. Matrix Group, LLC, 2009 UT 31, 1 14, 214 P.3d 854 (internal quotation marks omitted).
T8 The relevant portions of the Policy provide:
Coverage B-Personal and Advertising Injury Liability Insuring Agreement
We will pay those sums that the insured becomes legally obligated to pay as damages because of personal and advertising injury to which this insurance applies. We will have the right and duty to defend the insured against any suit seeking those damages. However, we will have no duty to defend the insured against any suit seeking damages for personal and advertising injury to which this insurance does not apply. We may, at our discretion, investigate any offense and settle any claim or suit that may result. ... Section VI-definitions: Personal and advertising injury means injury, including consequential bodily injury, arising out of one or more of the following offenses:
f. The use of anothers advertising idea in your advertisement.
(Emphasis added.)
T9 Admiral argues that the phrase those sums that the insured becomes legally obligated to pay as damages because of personal and advertising injury must be understood to limit its duty to defend to liability incurred as a result of personal and advertising injury. We agree.
110 Basic Research argues that the causes of action pled in the underlying claims fall within the Policys definition of personal and advertising injury, and specifically that the claims stem from the use of anothers advertising idea. Accordingly, Basic Research asks the court to require indemnification against claims of personal and advertising injury where the claim has some factual connection with Basic Researchs use of anothers advertising idea in its advertisement. In so doing, Basic Research ignores the definition of personal and advertising injury within the context of the coverage provision, creating ambiguity where there is none. [A] contract term is not ambiguous simply because one party ascribes a different meaning to it to suit his or her own interests. Equitable Life & Cas. Ins. Co. v. Ross, 849 P.2d 1187, 1192 (Utah Ct.App.1998).
[11 It is true that personal and advertising injury may factually arise out of the use of anothers advertising idea. But in order to trigger Admirals duty to defend, the underlying claims must allege personal and advertising injury that occurred as a result of the use of anothers advertising idea. That connection is lacking in the present case. Although the underlying claims asserted that Basic Research used the slogans Eat All You Want And Still Lose Weight and And we couldnt say it in print if it wasnt true!, the underlying causes of actions were in no way dependent on the source or ownership of those slogans. In fact, if the underlying claims were to go to trial, the plaintiffs would never be required to prove the original source of the slogans. They would need to prove only that Basic Research used the slogans to market a defective product.
112 None of the plaintiffs allege injury as a result of Basic Researchs having misappropriated or otherwise wrongfully used the advertising slogan of another[ ]. Indeed, allowing Basic Research to invoke the Policy based on underlying claims of this sort would require indemnification where there is any but-for causal link between the use of anothers advertising idea and an underlying plaintiffs damages, no matter how legally irrelevant the link. In interpreting a contract, the intentions of the parties are controlling. Cent. Fla. Invs., Inc. v. Parkwest Assocs., 2002 UT 8, 112, 40 P.3d 599. To so interpret the Policy would expand the scope of the contractual terms beyond their plain meaning and the parties original intentions. Where the alleged damages do not legally aris[e] out of the policyholders use of anothers advertising idea, the underlying claims do not obligate the insurer to indemnify.
T13 Basic Research presents voluminous authority suggesting that courts must broadly interpret the word use within the phrase use of anothers advertising idea. Specifically, Basic Research asserts that the phrase use of anothers advertising idea in your advertisement should not be limited to claims of misappropriation or wrongful taking of anothers advertising idea, but should rather include any form of misuse, including deceitful advertising. Such an interpretation may be appropriate where the underlying injury is directly caused by the deceitful advertising, regardless of the products failure to perform. However, in the instant case the use of the slogans is not the wrongdoing from which the underlying plaintiffs are claiming injury. Rather, they claim damages due to the allegedly false nature of those slogans and the resulting inducement to buy a defective product.
1114 Moreover, in the present case Basic Research appears to have had a license to use these slogans. See supra T2 n. 1. If we were to interpret the coverage terms as Basic Research requests, parties insured under this type of language would be able to indemnify themselves from all defective product liability by simply limiting their advertising, however false or deceptive, to the use of slogans and materials owned by other entities. Here, the slogans registered owner, Western Holdings, has not suggested any sort of abuse. The terms of the Policy might well obligate Admiral to indemnify Basic Research against a claim by Western Holdings related to Basic Researchs use of the slogans, but that is not the case before us.
{15 Basic Research has attempted to re-characterize the underlying claims, asserting that they do not allege injury from the class members failure to lose weight, but from their purchase of the product caused by the advertising. To support its characterization, Basic Research references an order in one of the underlying claims approving a class notification program directed at [pler-sons who purchased Akfvar after seeing or hearing the marketing slogan Eat all you want and still lose weight during the relevant damages period, without specifying whether the members of the proposed class had ever actually used the product. Miller v. Basic Research, LLC, 2011 WL 818150, at *2 (D.Utah Mar. 2, 2011). However, this characterization fails. A claim of injury resulting from reliance on the slogans ultimate ly depends on whether those slogans were true or not. Indeed, at oral argument Basic Research conceded what is alleged [in the class certification] is simply that the product is advertised in a way that it cannot possibly perform. Again, the underlying claims do not depend on whether Basic Research owned or was otherwise entitled to use the slogans, but on whether the slogans constitute false advertising. The underlying claims do not aris[e]l out of Basic Researchs use of anothers advertising idea in the sense required for coverage under the Policy.
T16 Finally, even if the Policys terms could conceivably be construed to encompass the underlying claims, each of the underlying claims is premised on Akf@vars failure to perform as advertised. Such claims are explicitly subject to exclusion G of the Policy, which provides:
Exclusions
This insurance does not apply to: ...
g. Quality or performance of goods-failure to conform to statements: Personal and advertising injury arising out of the failure of goods, products or services to conform with any statement of quality or performance made in your advertisement.
The underlying claims assert injury and damages resulting from Akfvars failure to live up to the promises of quality and performance expressed by the slogans.
CONCLUSION
117 After comparing the language of the Policy with the allegations in the underlying claims, we conclude that the claims asserted are not covered by the Policy, and are in fact squarely excluded by its terms. Admiral therefore has no duty to defend Basic Research. The district court is affirmed.
Justice DURHAM authored the opinion of the Court, in which Chief Justice DURRANT, Associate Chief Justice NEHRING, Justice PARRISH, and Justice LEE joined.
. At some point during the pendency of the underlying lawsuits, these slogans were trademarked by a company named Western Holdings. Basic Research appears to have licensed the use of these slogans from Western Holdings. See infra I 14.
. If applied to the Policy in this case, however, this interpretation might conflict with exclusion G. See infra 116. Further, the authorities provided by Basic Research treat claims of direct injury arising from a partys lack of entitlement to use an advertising idea. See, eg., Atlapac Trading Co., Inc. v. Am. Motorists Ins. Co., 1997 WL 1941512, at *1 (C.D.Cal. Sept. 19, 1997) (olive oil distributor asserting insurance companys duty to defend where underlying suit brought by rival distributor claiming direct injuries resulting from unfair competition was premised on improper use of slogan pure olive oil).