a rapier receiving {TAIL ~ at least two yarns} from {HEAD ~ said yarn feeders} for insertion simultaneously 
a rapier receiving { TAIL ~ at least two yarns } from { HEAD ~ said yarn feeders } for insertion simultaneously
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH