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