| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [noun sg] mark the [num ord] anniversary | 13 |
|
| 2 | [noun] [noun sg] to mark the [num ord] anniversary | 10 |
|
| 3 | [noun] [noun sg] mark the 50th anniversary | 5 |
|
