If no relationship with head of household, ask for relationship with most senior member of the household. This person will be head of the household.

[] 1 Head of the household themselves
[] 2 Spouse / partner of head
[] 3 Child / adopted child / stepchild
[] 4 Foster child
[] 5 Grandchild
[] 6 Parent / foster parent / parent-in-law
[] 7 Son-in-law / daughter-in-law / partner of child
[] 8 Grandparent / grandparent-in-law
[] 9 Other family member of the head
[] 10 Live-in household servant
[] 11 Other person, no family
[] 97 Don't know
[] 99 No response