| Similarity | Rank | |
|---|---|---|
| 90-day | 0.684 | 44202 |
| time-based | 0.663 | 74226 |
| 30-day | 0.643 | 27988 |
| 60-day | 0.641 | 51178 |
| case-by-case | 0.637 | 37039 |
| pre-registration | 0.630 | 66561 |
| non-transferable | 0.630 | 75774 |
| free-of-charge | 0.628 | 83166 |
| first-served | 0.627 | 62896 |
| pre-determined | 0.627 | 39971 |
| limited-time | 0.627 | 98359 |
| first-come | 0.625 | 50313 |
| limited | 0.624 | 1099 |
| mandatory | 0.622 | 6827 |
| 24-month | 0.621 | 99069 |
| 12-month | 0.615 | 32865 |
| pre-defined | 0.611 | 47304 |
| no-cost | 0.610 | 56280 |
| conditional | 0.610 | 16641 |
| project-based | 0.608 | 59849 |
| requiring | 0.607 | 4995 |
| voluntary | 0.607 | 6968 |
| 6-month | 0.604 | 50721 |
| open-ended | 0.602 | 27637 |
| performance-based | 0.602 | 53782 |