{HEAD ~ The light element} can include {TAIL ~ a light socket} , the light shade 22a with a wrist joint 22b to position the light 
include
{ HEAD ~ The light element } can include { TAIL ~ a light socket } , the light shade 22a with a wrist joint 22b to position the light
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH