| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be introduced for the first [noun] | 6 |
|
| 2 | be introduced for [art] first time | 6 |
|
| 3 | be introduced for [art] first [noun] | 6 |
|
| 4 | be introduced for [art] first time | 6 |
|
| 5 | be introduced for [art] first [noun sg] | 6 |
|
