| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | burden [prep] [noun sg] is [prep] the | 13 |
|
| 2 | burden [prep] proof is [prep] the | 13 |
|
| 3 | burden [prep] proof is [prep] the | 13 |
|
| 4 | burden of [noun] is [prep] the | 13 |
|
| 5 | burden [prep] [noun] is on the | 11 |
|
