Assertion: gay man's child | /r/HasProperty | raised by its biological mother
Facets:
Source sentences:
text: In Perry v. Brown, in which Judge Vaughn Walker found that the available studies on stepchildren, which opponents of same-sex marriage cited to support their position that it is best for a child to be raised by its biological mother and father, do not isolate "the genetic relationship between a parent and a child as a variable to be tested" and only compare "children raised by married, biological parents with children raised by single parents, unmarried mothers, step families and cohabiting parents," and thus "compare various family structures and do not emphasize biology."