{HEAD ~ The housing} 20 may include {TAIL ~ a first or lower half shell} 22 and a second or upper half shell 24 
include
{ HEAD ~ The housing } 20 may include { TAIL ~ a first or lower half shell } 22 and a second or upper half shell 24
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH