Random triples
| Subject | Object |
|---|---|
| gptkb:Chunnel | involved thousands of workers |
| gptkb:Øresund_Tunnel | complex engineering |
| gptkb:Channel_Tunnel | used 15 million tonnes of earth |
| gptkb:Lötschberg_Base_Tunnel | completed ahead of schedule |
| gptkb:Severn_Tunnel | Involved thousands of workers |