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nation station aeration dictation operation creation duration rotation decoration excitation fixation notation quotation temptation causation expiration aberration adoration affectation citation donation gestation iteration oration sedation ablation dilation elation expiation exudation education relation situation generation cooperation corporation foundation location occupation radiation separation variation activation admiration declaration deviation elevation exploration inflation liberation migration restoration sensation taxation agitation alteration aspiration degradation estimation hesitation imitation irritation meditation oxidation recreation respiration saturation vacation vegetation vibration annexation aviation cessation desperation elaboration emigration evaporation exaggeration federation filtration graduation irradiation maturation mediation moderation mutation narration negation probation toleration veneration vocation appellation automation castration connotation damnation escalation exaltation exhortation hydration inhalation intonation perforation recitation reparation summation application combination explanation formation imagination observation preparation regulation reputation adaptation correlation cultivation expectation exploitation immigration indication innovation inspiration invitation isolation limitation motivation obligation orientation revelation salvation violation accommodation allocation celebration collaboration delegation designation destination dissertation domination incorporation indignation initiation irrigation medication negotiation penetration plantation reservation resignation segregation termination ventilation accusation affirmation aggregation animation approbation calibration compilation dedication deliberation derivation desolation dilatation dissipation excavation habitation incarnation incubation litigation modulation ordination oscillation reformation starvation validation allegation alternation augmentation 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attenuation authorization complication condensation consolation deprivation dislocation dissociation distillation evacuation fabrication fascination fermentation importation infiltration insulation ionization polarization realisation replication retaliation retardation abbreviation adjudication amputation authentication cancellation capitulation confederation conformation constellation consternation constipation consummation culmination dehydration delineation demarcation deportation elongation exclamation extermination fibrillation implantation imputation inoculation interrogation intimidation invocation masturbation menstruation ovulation provocation refrigeration relocation repudiation resuscitation subjugation urbanization vaccination organization concentration interpretation determination investigation calculation demonstration modification organisation stimulation anticipation appropriation assimilation characterization confrontation congregation consolidation contamination 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