The second member comprises {TAIL ~ first and second regions} that are movable away from each other to capture {HEAD ~ a portion} of the straight shower rod between them 
The second member comprises { TAIL ~ first and second regions } that are movable away from each other to capture { HEAD ~ a portion } of the straight shower rod between them
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH