| P31 | instance of | ... | Q103632 (chess opening) | chess opening |
| P361 | part of | ... | Q66739595 (chess terminology) | chess terminology |
| P5286 | Portable Game Notation | String | e4 | ??? |
| P641 | sport | ... | Q718 (chess) | chess |
| P279 | subclass of | ... | Q1631907 (King's Pawn Game) | King's Pawn Game |
| P910 | topic's main category | ... | Q9029866 (???) | ??? |
| P9838 | ECO code | B00–B99 |
| P9838 | ECO code | C00–C19 |
| P646 | Freebase ID | /m/02r1phc |
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log id: 978062