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(subclass Resonance NaturalProcess) engineering.kif 648-648 Resonance is a subclass of natural process
(subclass MechanicalResonance Resonance) engineering.kif 651-651 Mechanical resonance is a subclass of resonance
(subclass ElectricalResonance Resonance) engineering.kif 655-655 Electrical resonance is a subclass of resonance

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