 |
| observation: 83 phrases in 16 subjects |
| Accounting | 1 |
| Astronomy | 37 |
| Construction | 13 |
| Criminal law | 1 |
| Earth sciences | 1 |
| Environment | 5 |
| General | 5 |
| Health care | 3 |
| Human rights activism | 7 |
| Information technology | 2 |
| Life sciences | 1 |
| Medical | 3 |
| Physics | 1 |
| Politics | 1 |
| Statistics | 1 |
| Transport | 1 |