 a support column having said {TAIL ~ light sources} mounted thereon, said column being connected to said shaft for {HEAD ~ revolving said light sources} within said enclosure 
a support column having said { TAIL ~ light sources } mounted thereon , said column being connected to said shaft for { HEAD ~ revolving said light sources } within said enclosure
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH