en bitumen upgrading (n)
― IsA ⟶
Weight: 1.0
en creation event (n) Source: OpenCyc 2012
en bitumen upgrading (n)
― IsA ⟶
Weight: 1.0
en processing (n) Source: OpenCyc 2012
en bitumen upgrading (n)
― IsA ⟶
Weight: 1.0
en destruction event (n) Source: OpenCyc 2012