Assertion: cantilever's support | /r/HasProperty | needed
Facets:
Source sentences:
text: In addition, bridges could be built across extremely wide bodies of water, or valleys, because fewer supports are needed, and the supports which are used can be further apart.
text: No supports are necessary at the outward end of the balcony, so the space beneath the balcony will be unimpeded by posts or other supports.