Assertion: concrete's material | /r/HasProperty | lumber
Facets:
value: from forests
type: LOCATION
Source sentences:
text: Building materials typically considered to be 'green' include lumber from forests that have been certified to a third-party forest standard, rapidly renewable plant materials like bamboo and straw, dimension stone, recycled stone, recycled metal (see: copper sustainability and recyclability), and other products that are non-toxic, reusable, renewable, and/or recyclable.