determining whether {HEAD ~ an attribute} that is associated with {TAIL ~ a first semantic object} is an object link attribute that relates the first semantic object to another semantic object in the semantic object model and, if so: 
determining whether { HEAD ~ an attribute } that is associated with { TAIL ~ a first semantic object } is an object link attribute that relates the first semantic object to another semantic object in the semantic object model and , if so :
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH