 |
| observation: 425 phrases in 39 subjects |
| Agriculture | 7 |
| Astronautics | 6 |
| Chemistry | 1 |
| Communications | 17 |
| Criminal law | 7 |
| Cultural studies | 1 |
| Earth sciences | 9 |
| Economy | 4 |
| Education | 5 |
| Electronics | 6 |
| Environment | 20 |
| Finances | 12 |
| Fish farming pisciculture | 3 |
| General | 53 |
| Health care | 2 |
| Human rights activism | 7 |
| Immigration and citizenship | 4 |
| Information technology | 10 |
| Labor law | 1 |
| Law | 18 |
| Life sciences | 70 |
| Marketing | 3 |
| Materials science | 2 |
| Mathematics | 24 |
| Medical | 22 |
| Natural sciences | 9 |
| Obsolete / dated | 3 |
| Patents | 4 |
| Pharmacy and pharmacology | 1 |
| Physical sciences | 1 |
| Politics | 10 |
| Research and development | 1 |
| Scientific | 1 |
| Social science | 5 |
| Sociology | 4 |
| Statistics | 45 |
| Technology | 3 |
| Transport | 13 |
| United Nations | 11 |