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| num_employee | name | missing |
|---|---|---|
| 2 | Mary | 2021-12-02 00:00:00 |
| 2 | Mary | 2021-12-03 00:00:00 |
| 1 | George | 2021-12-06 00:00:00 |
| num_employee | name | missing |
|---|---|---|
| 2 | Mary | 2021-12-02 00:00:00 |
| 2 | Mary | 2021-12-03 00:00:00 |
| 1 | George | 2021-12-06 00:00:00 |