Random triples
| Subject | Object |
|---|---|
| gptkb:Usworth_Colliery | over 1000 feet |
| gptkb:TauTona_gold_mine | 3,900 meters |
| gptkb:Maltby_Main_Colliery | over 900 metres |
| gptkb:Eppleton_Colliery | over 1000 feet |
| gptkb:Lofthouse_Colliery | over 600 metres |
| gptkb:Clipstone_Colliery | 920 metres |