That is, they are formed during {HEAD ~ the course} of and as a result of {TAIL ~ a fabrication sequence} that requires no manipulation or assembly of separate components 
of
That is , they are formed during { HEAD ~ the course } of and as a result of { TAIL ~ a fabrication sequence } that requires no manipulation or assembly of separate components
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH