_:nd99a43e655e54425ada5b5817a6df5dcxb4
<http://schema.org/valueRequired>
"true"^^<http://www.w3.org/2001/XMLSchema#boolean>
<https://markdurie.com/changing-world/?enmse=1&enmse_tid=6&enmse_mid=229&enmse_av=1>