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