| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | during the boom [noun pl] of | 7 |
|
| 2 | during the boom [noun pl] of | 7 |
|
| 3 | during the boom [noun pl] [prep] | 7 |
|
| 4 | during the boom [noun pl] [prep] | 7 |
|
