Assertion: bridge's arch | /r/MadeOf | wood
Facets:
Source sentences:
text: Trajan's bridge over the Danube featured open-spandrel segmental arches made of wood (standing on 40 m-high (130 ft) concrete piers).
text: Trajan's bridge over the Danube featured open-spandrel segmental arches made of wood (standing on 40 m high concrete piers).