Assertion: pit mining | /r/Synonym | strip mining
Facets:
value: mistakenly
type: MANNER
value: sometimes
type: TEMPORAL
Source sentences:
text: Open pit mining, also known as strip mining, is the removal of surficial soils and uneconomic rock to get at the ore below.
text: Although open-pit mining is sometimes mistakenly referred to as "strip mining", the two methods are different (see above).