{HEAD ~ The differences} within the alignment range of differences substantially corresponds to {TAIL ~ the wheels} being substantially aligned 
substantially corresponds to
{ HEAD ~ The differences } within the alignment range of differences substantially corresponds to { TAIL ~ the wheels } being substantially aligned
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH