Assertion: zebra's offspring | /r/HasProperty | sterile
Facets:
value: usually
type: DEGREE
value: like mules
type: OTHER
Source sentences:
text: Offspring of all crossovers are sterile, as zebras, horses and donkeys have different numbers of chromosomes.
text: However, like mules, the offspring of these pairs are sterile.
text: The offspring come in an amazing variety of semi-striped patterns, and are usually sterile (meaning they can’t have young).