{HEAD ~ Rate gyroscope} 301 produces a signal 302 indicating the angular velocity of {TAIL ~ camera} 100 
{ HEAD ~ Rate gyroscope } 301 produces a signal 302 indicating the angular velocity of { TAIL ~ camera } 100
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH