| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over 50 [noun pl] of [noun sg] | 6 |
|
| 2 | over 50 [noun] of [noun sg] | 6 |
|
| 3 | over 50 year of [noun sg] | 5 |
|
| 4 | over 50 years of [noun sg] | 5 |
|
