Assertion: boy | /r/HasProperty | either the father of two boys
Facets:
value: of two girls
type: OTHER
Source sentences:
text: However, someone may argue that "…before Mr. Smith identifies the boy as his son, we know only that he is either the father of two boys, BB, or of two girls, GG, or of one of each in either birth order, i.e., BG or GB.