| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Economy.kif 4568-4568 | Grape seed oil is a subclass of vegetable oil |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | Economy.kif 4586-4586 |
|
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