<http://schema.org/image>
<http://assets.inhabitat.com/wp-content/blogs.dir/1/files/2013/06/All-Mass-Chiclana-de-la-Frontera-Spain-Biofuel-Algae-Biomass-Fuel-Sewage-Power-renewable-energy.jpg>
<http://inhabitat.com/spanish-town-to-become-the-first-ever-to-run-its-vehicles-on-sewage/>