Assertion: rust's alloy | /r/HasProperty | exposed to moisture
Facets:
value: for a long period of time
type: TEMPORAL
Source sentences:
text: Rust is a general name for a complex of oxides and hydroxides of iron, which occurs when iron or some alloys that contains iron are exposed to oxygen and moisture for a long period of time.
text: Rust can occur when iron (or an alloy containing iron) is exposed to moisture and oxygen for an extended period of time.