Assertion: girl's family | /r/HasProperty | headed by single heterosexual mother
Facets:
Source sentences:
text: Thirty lesbian mother families and 42 families headed by a single heterosexual mother were compared with 41 two-parent heterosexual families using standardised interview and questionnaire measures of the quality of parenting and the socioemotional development of the child.
text: 60 families headed by single heterosexual mothers were compared on standardized interview and questionnaire measures administered to mothers, co-mothers/fathers, children, and teachers.
text: Twenty-five lesbian mother families and 38 families headed by a single heterosexual mother were compared with 38 two-parent heterosexual families.