Random triples
| Subject | Object |
|---|---|
| gptkb:Imaging_Atmospheric_Cherenkov_Telescope | during daylight |
| gptkb:Electric_Multiple_Units | On non-electrified tracks |
| gptkb:Imaging_Atmospheric_Cherenkov_Telescope | in cloudy conditions |
| gptkb:X-ray_telescopes | on Earth's surface |