{HEAD ~ A circular saw} has {TAIL ~ a housing} enclosing a motor for driving an output shaft about an axis of rotation 
{ HEAD ~ A circular saw } has { TAIL ~ a housing } enclosing a motor for driving an output shaft about an axis of rotation
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH