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