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Внутренняя Земля (также Полая Земля -- Hollow Earth: an Inner Earth civilization -- цивилизация внутренней Земли • More recently, JP said he'd visited Inner Earth facilities and subterranean cities where he interacted with the "Ant People," who have been there for centuries or longer.  coasttocoastam.com ART Vancouver) | |||
| Inner Earth: 5 phrases in 5 subjects |
| General | 1 |
| Geography | 1 |
| Geology | 1 |
| Mathematics | 1 |
| Military | 1 |