What is the mandatory minimum sentence for a child sexual abuse case involving a minor?

relating to aggravated sexual abuse, sexual abuse, or abusive sexual conduct involving a minor or ward" is subject to a mandatory minimum sentence of "not less than 10 years." Id. 2252(b)(2).⁹ Under this language, the federal generic offense is a class of offenses "relating to" any of three types of abusive sexual conduct. When considering such a class of offenses, we "'compare the crime of conviction with crimes we have previously determined to' fall into that particular classification of crimes." Rodriguez-Castellon v. Holder, 733 F.3d 847, 853 (9th Cir. 2013) (quoting Cerezo v. Mukasey, 512 F.3d 1163, 1166 (9th Cir. 2008)) (considering "crimes of violence"). "Under the categorical approach, we follow our common practice in cases involving non-traditional offenses by defining the offense based on the ordinary, contemporary, and common meaning of the statutory words." Sinerius, 504 F.3d at 740 (internal quotation marks omitted).