Doyle, Presiding Judge. Toni E. Fabrizio sued Dakota Briggs to recover damages resulting from injuries she sustained in an automobile collision. Fabrizio perfected service upon State Farm Automobile Insurance Company (“State Farm”) in an attempt to collect uninsured/underinsured motorist (“UM”) benefits, seeking coverage based on five automobile insurance policies issued to her father, Tony Foster. Fabrizio subsequently moved for summary judgment as to coverage, arguing that she was covered by the State Farm policies as a resident relative of Foster at the time of the accident, and the trial court granted the motion. State Farm appeals, arguing that the trial court erred by misapplying the rule in Prophecy Corp. v. Charles Rossignol, Inc.,[1] to disregard some of Fabrizio’s testimony. We agree and reverse.“Summary judgment is proper when there is no genuine issue of material fact and the movant is entitled to judgment as a matter of law. OCGA § 9-11-56 (c). We apply a de novo standard of review and view the evidence in the light most favorable to the nonmovant.”[2] So viewed, the record shows that on December 19, 2013, Fabrizio was injured in an automobile accident with Briggs. She sued him, serving State Farm in its capacity as Foster’s UM carrier.[3] State Farm filed an answer in its own name, denying coverage. According to the parties, State Farm issued five automobile policies to Foster, which when stacked, provide for an additional $175,000 in coverage.[4] To qualify as an insured under those policies, Fabrizio must be found to be a “resident relative” of Foster at the time of the accident.[5] In her March 17, 2015 interrogatory responses, Fabrizio identified only her three children as members of her household at the time of the accident. At her initial deposition, taken July 10, 2015, she testified that she and Foster maintained separate residences at the time of the accident, stating that she lived at 3297 Carl Sutton Road with her three children, and Foster lived in a house across the street at 3290 Carl Sutton Road. On September 13, 2015, Fabrizio executed an affidavit stating that Foster moved into the 3297 Carl Sutton Road house with her in October 2013, where they both lived at the time of the accident. Fabrizio characterized her prior deposition testimony regarding members of her household as “a mistake that [she] realized after [her] deposition . . after speaking to [Foster].” Foster also executed an affidavit, averring that he moved in with Fabrizio at the house at 3297 Carl Sutton Road in October 2013, where they both lived at the time of the accident. On November 4, 2015, State Farm took Fabrizio’s deposition a second time, and she testified that she lived at 3297 Carl Sutton Road with her father and three children at the time of the accident.Thereafter, Fabrizio moved for summary judgment as to the issue of residency and coverage,[6] relying upon Prophecy.[7] The trial court granted the motion in a single-sentence order with no explanation, simply citing Prophecy. This appeal followed.State Farm argues that the trial court erred by granting summary judgment to Fabrizio because genuine issues of material fact exist regarding whether she and Foster maintained the same residence at the time of the December 19, 2013 accident. We agree.“The rule in Georgia is that the testimony of a party who offers [herself] as a witness in [her] own behalf at trial is to be construed most strongly against [her] when it is selfcontradictory, vague[,] or equivocal.”[8] In Prophecy, the Supreme Court of Georgia announced a general rule for construing contradictory testimony made by a summary judgment respondent: [W]hen a party has given contradictory testimony, and when that party relies exclusively on that testimony in opposition to summary judgment, a court must construe the contradictory testimony against [her]. In such a case, the court must disregard the favorable portions of the contradictory testimony and then decide whether the remaining evidence is sufficient to get by summary judgment. For purposes of the Prophecy rule, testimony is contradictory if one part of the testimony asserts or expresses the opposite of another part of the testimony. [However, c]ontradictory testimony is not to be construed against a party if [she] offers a reasonable explanation for the contradiction.”[9]