Assertion: brass | /r/HasProperty | copper
Facets:
Source sentences:
text: Brass (copper and zinc)
text: This system uses a letter—in this case the letter "C" for copper, because brass is a copper alloy—followed by five digits.
text: Brass and bronze are both alloys of copper -- that is, they are ``solid solutions," or mixtures of copper with another metal.
text: Brass is an alloy of copper, which is widely used as a sheet metal.
text: Brass is a mixture of zinc (Zn) and copper (Cu).
text: Brass (copper and zinc)
text: Brass is copper and zinc.
text: Oxidation is a chemical reaction that occurs when brass, a copper alloy, comes into contact with the air.
text: Brass is a copper alloy (element symbol Cu), usually combined with zinc (Zn), although sometimes other metals are combined with copper to make brass.