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appearance as argument number 1

(documentation oppositeDirection EnglishLanguage "(oppositeDirection ?DIR1 ?DIR2) means that the PositionalAttribute ?DIR1 points in the compass direction opposite to the DirectionalAttribute ?DIR2.")	Mid-level-ontology.kif 18156-18158
(domain oppositeDirection 1 PositionalAttribute)	Mid-level-ontology.kif 18153-18153	The number 1 argument of opposite direction is an instance of positional attribute
(domain oppositeDirection 2 PositionalAttribute)	Mid-level-ontology.kif 18154-18154	The number 2 argument of opposite direction is an instance of positional attribute
(instance oppositeDirection BinaryPredicate)	Mid-level-ontology.kif 18150-18150	opposite direction is an instance of binary predicate
(instance oppositeDirection IrreflexiveRelation)	Mid-level-ontology.kif 18152-18152	opposite direction is an instance of irreflexive relation
(instance oppositeDirection SymmetricRelation)	Mid-level-ontology.kif 18151-18151	opposite direction is an instance of symmetric relation

appearance as argument number 2

(format ChineseLanguage oppositeDirection "%2 %n 是 %1 的 opposite 方向")	domainEnglishFormat.kif 1847-1847
(format ChineseTraditionalLanguage oppositeDirection "%2 %n 是 %1 的 opposite 方向")	domainEnglishFormat.kif 1846-1846
(format EnglishLanguage oppositeDirection "%2 is %n an opposite direction of %1")	domainEnglishFormat.kif 1845-1845
(termFormat ChineseLanguage oppositeDirection "相反的方向")	domainEnglishFormat.kif 42326-42326
(termFormat ChineseTraditionalLanguage oppositeDirection "相反的方向")	domainEnglishFormat.kif 42325-42325
(termFormat EnglishLanguage oppositeDirection "opposite direction")	domainEnglishFormat.kif 42324-42324

antecedent

(=> (and (instance ?ZEPHYR WindFlow) (measure ?ZEPHYR (VelocityFn ?DIST ?TIME ?PLACE ?DIR-TOWARD)) (oppositeDirection ?DIR-TOWARD ?DIR-FROM)) (surfaceWindDirection ?PLACE ?DIR-FROM))	Weather.kif 182-187	If a physical is an instance of wind flow and the measure of the physical is a length measure per a time duration in a region in the direction an entity-TOWARD and the entity-FROM is an opposite direction of the entity-TOWARD, then the entity-FROM is a surface wind direction of the region
(=> (and (orientation ?OBJ1 ?OBJ2 ?DIR) (instance ?DIR PositionalAttribute) (oppositeDirection ?DIR ?OPPDIR)) (orientation ?OBJ2 ?OBJ1 ?OPPDIR))	Mid-level-ontology.kif 18163-18168	If an object is a positional attribute to another object and the positional attribute is an instance of positional attribute and another positional attribute is an opposite direction of the positional attribute, then the other object is the other positional attribute to the object
(=> (and (surfaceWindVelocity ?PLACE ?SPEED ?DIR-TOWARD) (oppositeDirection ?DIR-TOWARD ?DIR-FROM)) (surfaceWindDirection ?PLACE ?DIR-FROM))	Weather.kif 176-180	If an object is surface wind velocity a physical quantity for an entity-TOWARD and the entity-FROM is an opposite direction of the entity-TOWARD, then the entity-FROM is a surface wind direction of the object
(=> (oppositeDirection ?DIR1 ?DIR2) (contraryAttribute ?DIR1 ?DIR2))	Mid-level-ontology.kif 18170-18172	If a positional attribute is an opposite direction of another positional attribute, then the other positional attribute is the opposite of the positional attribute

consequent

(=>
    (and
        (instance ?SAW Saw)
        (instance ?CUT Cutting)
        (instrument ?CUT ?SAW)
        (instance ?OBJ Object)
        (patient ?CUT ?OBJ))
    (exists (?MOTION ?DIR1 ?DIR2 ?TIME ?T1 ?T2 ?PART)
        (and
            (instance ?MOTION Motion)
            (subProcess ?MOTION ?CUT)
            (instance ?PART CuttingDevice)
            (part ?PART ?SAW)
            (meetsSpatially ?PART ?OBJ)
            (patient ?MOTION ?PART)
            (instance ?T2 TimeInterval)
            (instance ?T2 TimeInterval)
            (equal
                (WhenFn ?MOTION) ?TIME)
            (temporalPart ?TIME ?T1)
            (temporalPart ?TIME ?T2)
            (instance ?DIR1 DirectionalAttribute)
            (instance ?DIR2 DirectionalAttribute)
            (=>
                (holdsDuring ?T1
                    (direction ?MOTION ?DIR1))
                (holdsDuring ?T2
                    (and
                        (direction ?MOTION ?DIR2)
                        (or
                            (equal ?DIR1 ?DIR2)
                            (oppositeDirection ?DIR1 ?DIR2))
                        (not
                            (and
                                (equal ?DIR1 ?DIR2)
                                (oppositeDirection ?DIR1 ?DIR2)))))))))

Mid-level-ontology.kif 18177-18211

If an object is an instance of saw and a process is an instance of cutting and the object is an instrument for the process and another object is an instance of object and the other object is a patient of the process,
then there exist another process, an entity,, , another entity,, , a time interval,, , a time position,, , another time position and a third object such that the other process is an instance of motion and the other process is a subprocess of the process and the third object is an instance of cutting device and the third object is a part of the object and the third object meets the other object and the third object is a patient of the other process and the other time position is an instance of time interval and the other time position is an instance of time interval and the time of existence of the other process is equal to the time interval and the time interval is a part of the time position and the time interval is a part of the other time position and the entity is an instance of directional attribute and the other entity is an instance of directional attribute and
- if entities in the process the other process are moving the entity holds during the time position,
- then entities in the process the other process are moving the other entity and the entity is equal to the other entity or the other entity is an opposite direction of the entity and ~{ the entity is equal to the other entity } or ~{ the other entity is an opposite direction of the entity } holds during the other time position

appearance as argument number 0

(oppositeDirection East West)	Mid-level-ontology.kif 18161-18161	West is an opposite direction of east
(oppositeDirection North South)	Mid-level-ontology.kif 18160-18160	South is an opposite direction of north
(oppositeDirection Northeast Southwest)	Geography.kif 3671-3671	Southwest is an opposite direction of northeast
(oppositeDirection Northwest Southeast)	Geography.kif 3683-3683	Southeast is an opposite direction of northwest
(oppositeDirection Upstream Downstream)	Geography.kif 5460-5460	Downstream is an opposite direction of upstream

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