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| classe A di uno stadio di amplificazione | |||
| classe A: 40 phrases in 16 subjects |
| Agriculture | 1 |
| Coal | 1 |
| Communications | 2 |
| Education | 2 |
| Electronics | 4 |
| Finances | 1 |
| General | 1 |
| Health care | 1 |
| Information technology | 2 |
| Law | 17 |
| Life sciences | 1 |
| Materials science | 1 |
| Microsoft | 1 |
| Patents | 3 |
| Statistics | 1 |
| Transport | 1 |