| k | num | v's |
| vehicle | 5 | hamlet (1), no (3), yes (1), |
| volcano:status | 5 | active (2), dormant (1), inactive (2), |
| volcano:type | 2 | mud (2), |
| voltage | 458 | 10000;400 (4), 110000 (114), 132000 (11), 154000 (4), 220000 (35), 220;5 (1), 230000 (8), 25000 (46), 3000 (181), 330000 (33), 36000 (3), 400 (1), 400000 (3), 500000 (8), 6000;400 (4), 63000 (2), |