| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] years [pers pn] | 1027 |
|
| 2 | [num] million years | 439 |
|
| 3 | [num] million [pers pn] | 14 |
|
| 4 | million years [pers pn] | 9 |
|
