| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | hours community | 33 |
|
| 2 | hours work | 18 |
|
| 3 | hours time | 15 |
|
| 4 | hours notice | 13 |
|
| 5 | hours difficulty | 12 |
|
| 6 | hours drive | 11 |
|
| 7 | hours sleep | 9 |
|
| 8 | hours duration | 6 |
|
