<http://schema.org/keywords>
"urban park, details structureTechnical specifications, reinforced concrete, concrete, Stahlbeton, b\u00E9ton arm\u00E9, Schalung, formwork"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bibliocad.com/library/details-urban-park-structure_53631>