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