<https://shotcrete.org/#website>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://shotcrete.org/faq-items/we-will-be-tiling-a-pool-the-pools-shotcrete-walls-and-floor-were-placed-approximately-10-days-ago-what-is-the-earliest-we-can-begin-gauging-the-pool-walls-and-floors/>