bounding_layer_of
X outer_layer_of Y iff:\n. X :continuant that bearer_of some PATO:laminar\n. X part_of Y\n. exists Z :surface\n. X has_boundary Z\n. Z boundary_of Y\n\nhas_boundary: http://purl.obolibrary.org/obo/RO_0002002\nboundary_of: http://purl.obolibrary.org/obo/RO_0002000
BFO:0000050
part_of
is_a