{HEAD ~ The interface} provides {TAIL ~ access} to the data elements and the order keys in the dataset in a type safe manner 
provides
{ HEAD ~ The interface } provides { TAIL ~ access } to the data elements and the order keys in the dataset in a type safe manner
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH