Assertion: concrete's material | /r/HasProperty | expensive
Facets:
value: far
type: DEGREE
value: for any building.[citation
type: OTHER
Source sentences:
text: Chrome, gold, and silver are used as decoration, because these materials are expensive and lack structural qualities such as tensile strength or hardness.
text: Chrome, gold, and silver are used as decoration, because these materials are expensive and lack structural qualities such as tensile strength or hardness.
text: Some experiments have had promising early results with carbon nanotubes, but the material is still far too expensive for any building.[citation needed]