Random triples
| Subject | Object |
|---|---|
| gptkb:I-class_submarines | no |
| gptkb:submarine_B-413 | equipped with snorkel |
| gptkb:Vesikko_submarine | no |
| gptkb:U-boat_type_VIIC | optional snorkel |
| gptkb:Submarine_I-40 | equipped with snorkel |
| gptkb:Vesikko_(S-1) | no |
| gptkb:USS_Tuna_(SS-84) | no |
| gptkb:USS_Barracuda_(SS-24) | No |
| gptkb:USS_Marlin_(SS-69) | yes |