| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] are those of the [noun pl] | 9 |
|
| 2 | [noun pl] are [det] of the authors | 8 |
|
| 3 | [noun pl] are some of the [noun pl] | 6 |
|
| 4 | papers are [det] of the [noun pl] | 6 |
|
