<https://theconstructor.org/environmental-engg/water-demand-water-supply-system/34760/#webpage>
<http://schema.org/dateModified>
"2019-07-05T13:40:41+00:00"^^<http://schema.org/Date>
<https://theconstructor.org/environmental-engg/water-demand-water-supply-system/34760/>