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convexe : 16 phrases in 11 subjects |
| Chemistry | 1 |
| Earth sciences | 1 |
| Electronics | 1 |
| Health care | 1 |
| Industry | 1 |
| Mathematics | 2 |
| Mechanic engineering | 1 |
| Medical | 1 |
| Metallurgy | 3 |
| Physical sciences | 3 |
| Transport | 1 |
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