| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [prep] the [num ord] [noun sg] | 261 |
|
| 2 | was introduce [prep] the [noun sg] | 78 |
|
| 3 | introduce [prep] the [num ord] [noun sg] | 55 |
|
| 4 | was introduce [prep] the [num ord] | 14 |
|
