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