| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [is] [noun sg] [prep] [noun sg] | 277 |
|
| 2 | [letter] [is] [noun sg] [prep] [noun] | 28 |
|
| 3 | [letter] [be] [noun sg] [prep] [noun sg] | 12 |
|
| 4 | [letter] [is] [noun] [prep] [noun sg] | 11 |
|
