part_of
part of
part of
develops_from
develops from
directly develops from
directly_develops_from
develops from part of
develops_from_part_of
x develops from part of y if and only if there exists some z such that x develops from z and z is part of y
RO:0002225
uberon
develops_from_part_of
Chris Mungall
develops_from_part_of
pending final vetting