separating {TAIL ~ the water} from {HEAD ~ the mixture} of to provide the metal alkoxide M2  
separating { TAIL ~ the water } from { HEAD ~ the mixture } of to provide the metal alkoxide M2
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH