observation : 94 phrases in 25 subjects |
Communications | 1 |
Criminal law | 3 |
Data processing | 1 |
Earth sciences | 1 |
Education | 1 |
Environment | 9 |
Fish farming pisciculture | 1 |
General | 4 |
Health care | 1 |
Human rights activism | 1 |
Information technology | 4 |
Law | 2 |
Life sciences | 2 |
Marketing | 1 |
Mathematics | 36 |
Medical | 4 |
Natural sciences | 1 |
Obsolete / dated | 7 |
Patents | 3 |
Pharmacy and pharmacology | 1 |
Politics | 2 |
Security systems | 1 |
Statistics | 2 |
Swimming | 1 |
Transport | 4 |