Trunking for {HEAD ~ services} such as {TAIL ~ electric cables}, telephone cable and the like 
such as
Trunking for { HEAD ~ services } such as { TAIL ~ electric cables } , telephone cable and the like
OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH