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No TPTP formula. May not be expressible in strict first order. Weather.kif 1771-1771 Dust storm is a subclass of storm
No TPTP formula. May not be expressible in strict first order. Weather.kif 1816-1816 Sand storm is a subclass of dust storm
No TPTP formula. May not be expressible in strict first order. Weather.kif 1828-1828 Haboob is a subclass of dust storm


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