The dissimilarity can include, but is not limited to, {TAIL ~ direction} of rotation and {HEAD ~ size} 
The dissimilarity can include , but is not limited to , { TAIL ~ direction } of rotation and { HEAD ~ size }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD