| Similarity | Rank | |
|---|---|---|
| period_of | 0.708 | 4660 |
| a_period_of | 0.697 | 8962 |
| prolonged | 0.679 | 16293 |
| long_period | 0.665 | 90160 |
| a_prolonged | 0.599 | 83035 |
| during_period_of | 0.581 | 43674 |
| period_during | 0.580 | 88778 |
| during_a_period | 0.573 | 36650 |
| after_a_period | 0.569 | 34261 |
| for_long_period | 0.569 | 55766 |
| for_a_long_period | 0.560 | 76041 |
| protracted | 0.547 | 54435 |
| bout_of | 0.546 | 76161 |
| this_period | 0.538 | 12824 |
| sustained | 0.530 | 17204 |
| several_year_of | 0.528 | 92254 |
| for_a_long_period_of | 0.526 | 48355 |
| a_period | 0.521 | 19885 |
| for_long_period_of_time | 0.515 | 45690 |
| especially_during | 0.512 | 63556 |
| ,_particularly_during | 0.511 | 65060 |
| period_of_time | 0.509 | 20386 |
| period | 0.504 | 1069 |
| over_a_long_period_of | 0.502 | 50448 |
| many_year_of | 0.502 | 46221 |