said third element supporting {HEAD ~ a third hydromotor} having {TAIL ~ a rotary output} means to provide rotation about a third of said three axes, 
having
said third element supporting { HEAD ~ a third hydromotor } having { TAIL ~ a rotary output } means to provide rotation about a third of said three axes ,
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH