en extra heavy crude oil (n)
― IsA ⟶
Weight: 1.0
en solid object (n) Source: OpenCyc 2012
en athabasca oil sands bitumen (n)
― IsA ⟶
Weight: 1.0
en extra heavy crude oil (n) Source: OpenCyc 2012
en extra heavy crude oil (n)
― IsA ⟶
Weight: 1.0
en heavy crude (n) Source: OpenCyc 2012