{HEAD ~ The amount} of {TAIL ~ the metal} contained in the flexible thermosetting resin and the thermosetting resin containing the boron is preferably present in excess of the amount stoichiometrically necessary to combine with the boron present 
of
{ HEAD ~ The amount } of { TAIL ~ the metal } contained in the flexible thermosetting resin and the thermosetting resin containing the boron is preferably present in excess of the amount stoichiometrically necessary to combine with the boron present
HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH OTH