Random triples
| Subject | Object |
|---|---|
| gptkb:Hydraulophone | Direct physical contact with water |
| gptkb:pygmy_water_boatman | stridulation (rubbing penis against abdomen) |
| gptkb:drum_(fish) | vibrating swim bladder muscles |
| gptkb:hydraulophone | water flow through holes |
| Subject | Object |
|---|---|
| gptkb:Hydraulophone | Direct physical contact with water |
| gptkb:pygmy_water_boatman | stridulation (rubbing penis against abdomen) |
| gptkb:drum_(fish) | vibrating swim bladder muscles |
| gptkb:hydraulophone | water flow through holes |