| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have introduced [art] [adj] [noun] [noun sg] | 29 |
|
| 2 | have introduced [art] [adj] [noun] [noun sg] | 29 |
|
| 3 | have introduced a [adj] [noun] [noun sg] | 25 |
|
| 4 | have introduced a [adj] [noun] [noun sg] | 21 |
|
