What is the legal test for overturning a finding of not guilty in a sexual assault case in which the prosecution relies mainly on circumstantial evidence?

review is the same in cases in which the prosecution relies mainly on circumstantial evidence. [Citation.] '"Although it is the duty of the [trier of fact] to acquit a defendant if it finds the circumstantial evidence is susceptible of two interpretations, one of which suggests guilt and the other innocence [citations], it is the [trier of fact], not the appellate court[,] which must be convinced of the defendant's guilt beyond a reasonable doubt. '"If the circumstances reasonably justify the trier of fact's findings, the opinion of the reviewing court that the circumstances might also reasonably be reconciled with a contrary finding does not warrant a reversal of the judgment."' [Citations.]"'" (People v. Rodriguez (1999) 20 Cal.4th 1, 11.)