Template:Terminology- family groups

Terminology:
 * Background: Children in a family may have one or both biological parents different from other siblings in the family. Each of these family subgroups are for want of a better term called a "group".  So, the Spouse or partner for group 1 would be Coparent-g1.  Children of coparent-g1 would be in group named children-g1. An adopted or foster child in the family would be in a separate group, for instance "children-g2", but the corresponding coparent-g2 might be identical to coparent-g1 if that person performed the bulk of their parenting.  A separate property indicates their biological parent if known.
 * coparent-g1: "spouse", concubine, partner, or other individual who parented the child along with the main subject.
 * children-g1: list of children for the subject and the coparent for group1.