What is the test of legal sufficiency in a sexual assault case?

"On appeal, the test of legal sufficiency is whether there is substantial evidence, i.e., evidence from which a reasonable trier of fact could conclude that the prosecution sustained its burden of proof beyond a reasonable doubt. [Citations.] Evidence meeting this standard satisfies constitutional due process and reliability concerns. [Citations.] [] While the appellate court must determine that the supporting evidence is reasonable, inherently credible, and of solid value, the court must review the evidence in the light most favorable to the prosecution, and must presume every fact the jury could reasonably have deduced from the evidence. [Citations.] Issues of witness credibility are for the jury. [Citations.]" (People v. Boyer (2006) 38 Cal.4th 412, 479-480.)