| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | service at [art] same time | 5 |
|
| 2 | service [prep] the same time | 5 |
|
| 3 | service [prep] [art] same time | 5 |
|
| 4 | service [prep] the same time | 5 |
|
