{HEAD ~ The system} 1, further comprising water pervious driveways, sidewalks and {TAIL ~ streets} that drain downward into said playgrounds and parks 
comprising
{ HEAD ~ The system } 1 , further comprising water pervious driveways , sidewalks and { TAIL ~ streets } that drain downward into said playgrounds and parks
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH