(<=>
(and
(instance ?LD LiquidDrop)
(approximateDiameter ?LD
(MeasureFn ?S Micrometer))
(lessThan 500.0 ?S))
(instance ?LD Droplet)) 
Geography.kif 75247530 
A self connected object is an instance of liquid drop and the approximate diameter of the self connected object is a real number micrometer(s) and 500.0 is less than the real number if and only if the self connected object is an instance of droplet 
(<=>
(and
(instance ?PM ParticulateMatter)
(part ?P ?PM)
(approximateDiameter ?P
(MeasureFn ?S Micrometer))
(greaterThan 10.0 ?S)
(greaterThan ?S 2.5))
(exists (?PM10)
(and
(instance ?PM10 CoarseParticulateMatter)
(part ?PM10 ?PM)))) 
Geography.kif 74407451 
An object is an instance of PM and a self connected object is a part of the object and the approximate diameter of the self connected object is a real number micrometer(s) and 10.0 is greater than the real number and the real number is greater than 2.5 if and only if there exists the object10 such that the object10 is an instance of PM10 and the object10 is a part of the object 
(<=>
(and
(instance ?PM ParticulateMatter)
(part ?P ?PM)
(approximateDiameter ?P
(MeasureFn ?S Micrometer))
(greaterThanOrEqualTo ?S 2.5))
(exists (?PM25)
(and
(instance ?PM25 FineParticulateMatter)
(part ?PM25 ?PM)))) 
Geography.kif 74697479 
An object is an instance of PM and a self connected object is a part of the object and the approximate diameter of the self connected object is a real number micrometer(s) and the real number is greater than or equal to 2.5 if and only if there exists the object25 such that the object25 is an instance of PM2.5 and the object25 is a part of the object 
(=>
(and
(approximateDiameter ?O
(MeasureFn ?L ?LM))
(sphereRadius ?S
(MeasureFn
(DivisionFn ?L 2.0) ?LM))
(measure ?S
(MeasureFn ?V1 ?VM))
(measure ?O
(MeasureFn ?V2 ?VM))
(instance ?LM UnitOfLength)
(instance ?VM UnitOfVolume))
(equal ?V1 ?V2)) 
Midlevelontology.kif 1794817959 

(=>
(and
(instance ?Particle Boulder)
(approximateDiameter ?Particle
(MeasureFn ?Size Millimeter)))
(greaterThan ?Size 256.0)) 
Geography.kif 73117316 

(=>
(and
(instance ?Particle Cobble)
(approximateDiameter ?Particle
(MeasureFn ?Size Millimeter)))
(and
(greaterThan 256.0 ?Size)
(greaterThan ?Size 64.0))) 
Geography.kif 72887295 

(=>
(and
(instance ?Particle Pebble)
(approximateDiameter ?Particle
(MeasureFn ?Size Millimeter)))
(and
(greaterThan 64.0 ?Size)
(greaterThan ?Size 2.0))) 
Geography.kif 72657272 

(=>
(and
(part ?Particle ?Soil)
(instance ?Soil Clay)
(approximateDiameter ?Particle
(MeasureFn ?Size Millimeter)))
(and
(greaterThan 0.004 ?Size)
(greaterThan ?Size 0.001))) 
Midlevelontology.kif 1797217980 

(=>
(and
(part ?Particle ?Soil)
(instance ?Soil Sand)
(approximateDiameter ?Particle
(MeasureFn ?Size Millimeter)))
(and
(greaterThan 2.0 ?Size)
(greaterThan ?Size 0.062))) 
Geography.kif 43754383 

(=>
(and
(part ?Particle ?Soil)
(instance ?Soil Silt)
(approximateDiameter ?Particle
(MeasureFn ?Size Millimeter)))
(and
(greaterThan 0.062 ?Size)
(greaterThan ?Size 0.004))) 
Geography.kif 44204428 
