The movement permitted includes linear and rotational movement in {TAIL ~ up to six degrees} of freedom depending on the configuration of {HEAD ~ the invention} used 
The movement permitted includes linear and rotational movement in { TAIL ~ up to six degrees } of freedom depending on the configuration of { HEAD ~ the invention } used
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH