en coal field (n)
― IsA ⟶
Weight: 1.0
en unnatural thing (n) Source: OpenCyc 2012
en developed coal field (n)
― IsA ⟶
Weight: 1.0
en coal field (n) Source: OpenCyc 2012
en coal field (n)
― IsA ⟶
Weight: 1.0
en mineral field (n) Source: OpenCyc 2012