maintaining said reaction mixture under conditions sufficient to form {TAIL ~ crystals} of {HEAD ~ said molecular sieve}; and 
maintaining said reaction mixture under conditions sufficient to form { TAIL ~ crystals } of { HEAD ~ said molecular sieve } ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH