| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | caused by a [noun sg] | 238 |
|
| 2 | caused by a lack | 11 |
|
| 3 | caused by a combination | 9 |
|
| 4 | caused by a number | 8 |
|
| 5 | caused by a virus | 8 |
|
| 6 | caused by a defect | 7 |
|
| 7 | caused by a fall | 5 |
|
