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nation duration narration oration aeration dilation elation relation creation generation location station variation declaration elevation rotation violation decoration delegation irrigation irritation temptation vibration cessation compilation derivation desolation dilatation oscillation starvation toleration appellation castration constellation donation gestation hydration iteration ablation adulation deflation legation education operation situation combination formation cooperation corporation foundation preparation radiation separation admiration correlation deviation immigration inflation innovation isolation liberation migration revelation salvation sensation stimulation taxation agitation allocation alteration arbitration aspiration degradation dissertation estimation fixation imitation installation notation penetration recreation saturation speculation vacation valuation vegetation ventilation affiliation attenuation authorization aviation causation consolation dedication 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coordination deformation degeneration designation destination deterioration domination excitation frustration hesitation implication inclination inflammation initiation medication meditation oxidation plantation quotation regeneration reservation respiration segregation simulation termination accusation affirmation aggregation animation annexation annihilation approbation calibration coagulation complication condensation deliberation dislocation elaboration evaporation expiration fabrication fascination graduation humiliation importation incubation irradiation litigation maturation mediation moderation polarization realisation reformation replication retaliation retardation specialization validation affectation augmentation authentication cancellation capitulation commendation conciliation confiscation conflagration conformation connotation consummation coronation dehydration delineation demarcation deportation devastation elongation exhortation exportation fertilization germination 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