| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [vb past] at the heart of | 7 |
|
| 2 | [Wh det] [vb past] at the heart [prep] | 7 |
|
| 3 | [Wh det] [vb past] at the heart of | 7 |
|
| 4 | which [vb past] at the heart [prep] | 6 |
|
| 5 | [Wh det] lay at the heart [prep] | 5 |
|
