<https://campersandleisure.co.uk/products/elsan-blue-bags-18-3-free-21-sachets-for-caravan-motorhome-toilets>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://campersandleisure.co.uk/products/elsan-blue-bags-18-3-free-21-sachets-for-caravan-motorhome-toilets>