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