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