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| ID | ELECTRIC_FLAG | GAS_FLAG | WATER_FLAG | WASTEWATER_FLAG |
|---|---|---|---|---|
| 1 | electric | gas | null | wastewater |
| 2 | electric | gas | water | wastewater |
| 3 | electric | null | water | null |
| ID | ELECTRIC_FLAG | GAS_FLAG | WATER_FLAG | WASTEWATER_FLAG |
|---|---|---|---|---|
| 1 | electric | gas | null | wastewater |
| 2 | electric | gas | water | wastewater |
| 3 | electric | null | water | null |