| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at a [noun] | 4020 |
|
| 2 | [vb pp] at a [noun] | 1445 |
|
| 3 | launched [prep] a [noun] | 63 |
|
| 4 | launched at [art] [noun] | 44 |
|
| 5 | launched at [art] [noun] | 44 |
|
| 6 | launched at a [noun] | 14 |
|
| 7 | launch at a [noun] | 13 |
|
