| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Geography.kif 164-164 | Northern north america is a geographic subregion of north america |
| No TPTP formula. May not be expressible in strict first order. | Geography.kif 92-92 | Northern north america is an instance of geographic area |
| appearance as argument number 2 |
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| No TPTP formula. May not be expressible in strict first order. | CountriesAndRegions.kif 408-408 | Canada is a geographic subregion of northern north america |
| No TPTP formula. May not be expressible in strict first order. | CountriesAndRegions.kif 411-411 | Greenland is a geographic subregion of northern north america |
| No TPTP formula. May not be expressible in strict first order. | CountriesAndRegions.kif 412-412 | Saint pierre and miquelon is a geographic subregion of northern north america |
| No TPTP formula. May not be expressible in strict first order. | Geography.kif 122-122 | Northern north america has name "Northern North America" |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 41127-41127 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 41126-41126 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 41125-41125 |
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