Original sentence: Fathers' rights advocates have worked for the right of unwed, otherwise fit, fathers to get custody if the mother tries to have their child adopted by a third party or if the child is to be placed in foster care by child welfare authorities
Edited sentence: Fathers' rights advocates have worked for the right of unwed, otherwise fit, fathers to get custody if the mother tries to have their child adopted by a third party or if the government assigns the child to foster care