The cover has {HEAD ~ at least one claw} , and the cover is mounted to the main body by {TAIL ~ the at least one claw} 
The cover has { HEAD ~ at least one claw } , and the cover is mounted to the main body by { TAIL ~ the at least one claw }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL