The holder has a second engagement part for {TAIL ~ engagement} of {HEAD ~ the first engagement part} and the first mating part 
The holder has a second engagement part for { TAIL ~ engagement } of { HEAD ~ the first engagement part } and the first mating part
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH