_:b670467951 . _:b670467951 "A portion of brick material is a material derived from a brick which is composed of kneaded clay-bearing soil, expanded clay aggregate, sand and lime, or concrete that has been fire-hardened or air-dried." . _:b670467951 . _:b670467951 "https://en.wikipedia.org/wiki/Brick" . _:b670467951 . _:b670467951 .