What is the test for determining the sufficiency of evidence in a sexual assault case?

Appellate inquiry into the sufficiency of the evidence does not require a court to ask itself whether it believes that the evidence at the trial established guilt beyond a reasonable doubt. [Citation.] Instead, the relevant question is whether, after viewing the evidence in the light most favorable to the prosecution, any rational trier of fact could have found the essential elements of the crime beyond a reasonable doubt. (Jackson v. Virginia (1979) 443 U.S. 307, 318319, 99 S.Ct. 2781, 61 L.Ed.2d 560.) In other words, it is the

[61 Cal.4th 1056]