| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [letter] [noun] | 19335 |
|
| 2 | [noun] [noun] headquarters | 208 |
|
| 3 | [noun] [letter] [n mass] | 175 |
|
| 4 | [noun] [letter] headquarters | 9 |
|
