{HEAD ~ each footed portion} being defined in {TAIL ~ part} by an upper surface which diverges from said body portion 
defined in
{ HEAD ~ each footed portion } being defined in { TAIL ~ part } by an upper surface which diverges from said body portion
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH