Assertion: foreskin | /r/HasProperty | sheath
Facets:
value: in non-human cases
type: OTHER
value: usually
type: DEGREE
Source sentences:
text: Almost all mammal penises have foreskins or prepuce, although in non-human cases the foreskin is usually a sheath (sometimes called the preputial sheath, praeputium or penile sheath) into which the whole penis is retracted.