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flow direction : 35 phrases in 17 subjects |
| Agriculture | 2 |
| Automobiles | 1 |
| Communications | 1 |
| Construction | 3 |
| Earth sciences | 2 |
| General | 1 |
| Geology | 1 |
| Industry | 1 |
| Information technology | 3 |
| Mechanic engineering | 3 |
| Medical appliances | 1 |
| Microelectronics | 1 |
| Mining | 2 |
| Natural resourses and wildlife conservation | 2 |
| Statistics | 1 |
| Technology | 9 |
| Transport | 1 |