| |||
| signal de référence pour les trames | |||
|
frame reference : 25 phrases in 11 subjects |
| Astronomy | 3 |
| Computers | 2 |
| Economics | 1 |
| Electronics | 5 |
| Law | 3 |
| Linguistics | 1 |
| Natural sciences | 2 |
| Physical sciences | 4 |
| Satellite communications | 1 |
| Technology | 1 |
| United Nations | 2 |