| (subclass NaturalProcess Process) | Merge.kif 10605-10605 | Natural process is a subclass of process |
| (subclass GeologicalProcess NaturalProcess) | Merge.kif 11311-11311 | Geological process is a subclass of natural process |
| (subclass Salination NaturalProcess) | Geography.kif 2882-2882 | Salinifying is a subclass of natural process |
| (subclass MechanicalProcess NaturalProcess) | engineering.kif 637-637 | Mechanical process is a subclass of natural process |
| (subclass ElectricalProcess NaturalProcess) | engineering.kif 641-641 | Electrical process is a subclass of natural process |
| (subclass Resonance NaturalProcess) | engineering.kif 650-650 | Resonance is a subclass of natural process |
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