overlaps
overlaps
partially overlaps
x partially overlaps y iff there exists some z such that z is part of x and z is part of y, and it is also the case that neither x is part of y or y is part of x
We would like to include disjointness axioms with part_of and has_part, however this is not possible in OWL2 as these are non-simple properties and hence cannot appear in a disjointness axiom