part_of
part of
part of
has part
has part
has_part
overlaps
overlaps
RO:0002131
x overlaps y iff they have some part in common.
x overlaps y if and only if there exists some z such that x has part z and z part of y
"(forall (x y) (iff (overlaps x y) (exists (z) (and (part of z x) (part of z y)))))" CLIF []
mereotopologically related to