 |
| materials of construction: 41 phrases in 13 subjects |
| Construction | 17 |
| Diplomacy | 1 |
| Economy | 8 |
| General | 4 |
| Geography | 1 |
| Makarov | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 2 |
| Organic chemistry | 1 |
| Technology | 1 |
| Trade classification | 2 |
| Transport | 1 |
| Weapons of mass destruction | 1 |