antecedent

(=>     (instance ?SNOWSTORM Snowstorm)     (holdsDuring         (WhenFn ?SNOWSTORM)         (exists (?SNOW ?AREA ?NUM)             (and                 (instance ?SNOW Snowing)                 (instance ?AREA GeographicArea)                 (eventLocated ?SNOW ?AREA)                 (subProcess ?SNOW ?SNOWSTORM)                 (snowfallIntensity ?AREA                     (WhenFn ?SNOW)                     (PerFn                         (MeasureFn ?NUM Centimeter)                         (MeasureFn 1 HourDuration)))                 (greaterThan ?NUM 5.0)))))

Weather.kif 4263-4278

If a physical is an instance of snow storm, then there exist an entity, another entity and a third entity such that the entity is an instance of snowing and the other entity is an instance of geographic area and the entity is located at the other entity and the entity is a subprocess of the physical and the rate of snow falling at the other entity during the time of existence of the entity is the per of the third entity centimeter(s) and 1 hour duration(s) and the third entity is greater than 5.0 holds during the time of existence of the physical

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