en mineral ore refinery (n)
― IsA ⟶
Weight: 1.0
en manufacturing facility (n) Source: OpenCyc 2012
en mineral ore refinery (n)
― IsA ⟶
Weight: 1.0
en processing plant (n) Source: OpenCyc 2012
en copper refinery (n)
― IsA ⟶
Weight: 1.0
en mineral ore refinery (n) Source: OpenCyc 2012