| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun sg] attacks on | 46 |
|
| 2 | series [prep] attacks on | 21 |
|
| 3 | series [prep] [noun sg] attacks | 13 |
|
| 4 | series [prep] [noun sg] on | 5 |
|
