C. an amount sufficient to promote curing of said composition of {TAIL ~ a platinum} containing {HEAD ~ catalyst}; and 
C. an amount sufficient to promote curing of said composition of { TAIL ~ a platinum } containing { HEAD ~ catalyst } ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH