Assertion: zebra's system | /r/HasProperty | social
Facets:
Source sentences:
text: The plain zebra is classified to a social system which is obscure with the basic social unit comprising of a `harem` which consists of single dominant male responsible for defending the herd with one to six females that are actually unrelated to a number of young ones.
text: Behaviorally, for example, it has a social system characterized by small groups of adults associated for short time periods of a few months.