| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] mark the 50th [noun] | 8 |
|
| 2 | [noun sg] mark [art] 50th [noun sg] | 8 |
|
| 3 | [noun sg] mark [art] 50th anniversary | 8 |
|
| 4 | [noun sg] mark [art] 50th [noun] | 8 |
|
| 5 | [noun sg] mark [art] 50th anniversary | 8 |
|
| 6 | [noun sg] mark the 50th [noun] | 8 |
|
| 7 | [noun sg] to mark [art] 50th [noun] | 7 |
|
