{TAIL ~ The trunking} comprises {HEAD ~ an elongate channel member} and an elongate cover member dimensioned and arranged releasably to engage and close the channel member 
{ TAIL ~ The trunking } comprises { HEAD ~ an elongate channel member } and an elongate cover member dimensioned and arranged releasably to engage and close the channel member
TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH