Assertion: group marriage | /r/HasProperty | based on polygyny
Facets:
Source sentences:
text: Among the more common forms so documented were common-law marriage ; morganatic marriage , in which titles and property do not pass to children; exchange marriage , in which a sister and a brother from one family marry a brother and a sister from another; and group marriages based on polygyny (co-wives) or polyandry (co-husbands).