| P393 | edition number | String | 9 | ??? |
| P156 | followed by | ... | Q1484202 (1968 International Mathematical Olympiad) | 1968 International Mathematical Olympiad |
| P155 | follows | ... | Q1492257 (1966 International Mathematical Olympiad) | 1966 International Mathematical Olympiad |
| P31 | instance of | ... | Q7983 (International Mathematical Olympiad) | International Mathematical Olympiad |
| P31 | instance of | ... | Q27968055 (recurring event edition) | recurring event edition |
| P2671 | Google Knowledge Graph ID | /g/121g0z29 |
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