| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] layer of [noun] [prep] [art] | 25 |
|
| 2 | thick [noun] of [noun] [prep] [art] | 23 |
|
| 3 | thick [noun sg] of [noun] [prep] [art] | 18 |
|
| 4 | thick layer of [noun] [prep] [art] | 6 |
|
| 5 | thick layer of [noun] [prep] [art] | 6 |
|
| 6 | thick layer [prep] [noun] [prep] [art] | 6 |
|
