| Similarity | Rank | |
|---|---|---|
| European_year | 0.536 | 84222 |
| Biodiversity | 0.524 | 16460 |
| Rio_+_[number] | 0.524 | 54662 |
| International_Women_day | 0.519 | 81290 |
| by_the_United_Nations | 0.510 | 66927 |
| the_Sustainable_Development_Goals | 0.509 | 81765 |
| the_[number]_th_anniversary_of | 0.507 | 65683 |
| Astronomy | 0.499 | 21432 |
| the_Millennium_Development_Goals | 0.498 | 39864 |
| Earth_Hour | 0.496 | 96853 |
| the_[number]_anniversary_of | 0.496 | 10635 |
| the_United_Nations | 0.494 | 4214 |
| the_United_Nations_General_Assembly | 0.488 | 88013 |
| for_Sustainable_Development | 0.488 | 98709 |
| Food_Security | 0.477 | 36768 |
| FAO | 0.476 | 18260 |
| Expo_[number] | 0.472 | 61564 |
| the_Food_and_Agriculture_Organization | 0.471 | 99367 |
| [number]_th_anniversary | 0.470 | 86675 |
| Earth_Day | 0.468 | 27080 |
| Chemistry | 0.468 | 8666 |
| To_celebrate | 0.464 | 21127 |
| UNESCO | 0.463 | 9649 |
| by_the_UN | 0.461 | 82306 |
| of_Light | 0.461 | 31614 |