| Similarity | Rank | |
|---|---|---|
| eight-month | 0.808 | 51610 |
| 18-month | 0.763 | 33170 |
| 19-year | 0.760 | 62661 |
| 14-year | 0.745 | 42866 |
| 12-year | 0.744 | 36824 |
| 16-year | 0.742 | 53661 |
| seven-month | 0.735 | 52931 |
| six-month | 0.731 | 15082 |
| month-long | 0.730 | 31619 |
| one-month | 0.729 | 54906 |
| 21-month | 0.728 | 96861 |
| 17pc | 0.726 | 71789 |
| three-week | 0.724 | 22396 |
| two-month | 0.719 | 29594 |
| coalminer | 0.719 | 72532 |
| seven-week | 0.717 | 75025 |
| 72-hour | 0.717 | 79167 |
| rir | 0.715 | 95459 |
| 13-day | 0.715 | 92585 |
| mid-1986 | 0.713 | 92657 |
| nine-year | 0.711 | 39378 |
| nine-month | 0.710 | 36175 |
| four-month | 0.709 | 34526 |
| six-week | 0.707 | 29532 |
| lay-off | 0.707 | 20660 |