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| DontKnow | Internal functions for unknownR |
| Esc | Internal functions for unknownR |
| Know | Internal functions for unknownR |
| learn | Run learn() after unk() |
| Next | Internal functions for unknownR |
| Red | Internal functions for unknownR |
| Skip | Internal functions for unknownR |
| unk | Starts GUI interface for unknownR |
| Unlock | Internal functions for unknownR |