{HEAD ~ A similar set} of components may be used to measure {TAIL ~ rotation} about the other axes 
used to measure
{ HEAD ~ A similar set } of components may be used to measure { TAIL ~ rotation } about the other axes
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH