_:n389d9d212aad4383a6f7d6d30d01e290xb4
<http://schema.org/valueRequired>
"true"^^<http://www.w3.org/2001/XMLSchema#boolean>
<https://www.createprogram.org/addendum-no-2-for-ew3-segment-b-track-and-civil-design-services/>