<https://gerardcambon.net/chlorine-walls-of-pathogens-ostrowski-said-when-it-came/#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://gerardcambon.net/chlorine-walls-of-pathogens-ostrowski-said-when-it-came/>