Assertion: occurring asphalt | /r/HasProperty | specified by the term
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: Naturally occurring asphalt is sometimes specified by the term "crude bitumen".
text: Naturally occurring asphalt is sometimes specified by the term "crude bitumen"; its viscosity is similar to that of cold molasses, whilst the material obtained from the fractional distillation of crude oil [boiling at 525 °C) is sometimes referred to as "refined bitumen".