{HEAD ~ The housing} may have holes to accommodate {TAIL ~ a pad} that seats against the individual sensing lines 
{ HEAD ~ The housing } may have holes to accommodate { TAIL ~ a pad } that seats against the individual sensing lines
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH