| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] 15 years [unc] imprisonment | 12 |
|
| 2 | [prep] 15 years ['s] imprisonment | 12 |
|
| 3 | [prep] 15 years ' imprisonment | 12 |
|
| 4 | [prep] 15 years ' imprisonment | 12 |
|
| 5 | to 15 years [unc] imprisonment | 11 |
|
| 6 | to 15 years [unc] imprisonment | 11 |
|
