| http://www.w3.org/ns/prov#value | - Here, it is counting several different kinds of family arrangements: 1) parents living with their adult children over age 25 (a scenario in which either adult or child may be the head of household), 2) households with three generations, including parents, adult children and grandchildren, 3) "skipped generations such as a grandparent caring for a grandchild, or 4) households
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