Table 3. Test of our application.
| Volunteer | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | System |
|---|---|---|---|---|---|---|---|---|---|---|---|
| No. 1 lesson | 4 | 2 | 1 | 0 | 2 | 2 | 3 | 2 | 0 | 2 | 2 |
| No. 2 lesson | 2 | 3 | 3 | 3 | 1 | 4 | 0 | 3 | 3 | 3 | 3 |
| No. 3 lesson | 0 | 0 | 1 | 2 | 0 | 1 | 0 | 2 | 0 | 0 | 0 |
| No. 4 lesson | 3 | 2 | 3 | 1 | 3 | 3 | 1 | 3 | 3 | 3 | 3 |
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