{HEAD ~ The sequencer} is also capable of rotating {TAIL ~ the beam} up and down in a vertical plane 
capable of rotating
{ HEAD ~ The sequencer } is also capable of rotating { TAIL ~ the beam } up and down in a vertical plane
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH