Upstream - Sigma Knowledge base Browser

appearance as argument number 1

(instance Upstream PositionalAttribute)	Geography.kif 5457-5457	Upstream is an instance of positional attribute
(oppositeDirection Upstream Downstream)	Geography.kif 5460-5460	Downstream is an opposite direction of upstream

appearance as argument number 2

(subAttribute Upwind Upstream)	Weather.kif 262-262	Upwind is a subattribute of upstream
(termFormat ChineseLanguage Upstream "上游")	domainEnglishFormat.kif 60664-60664
(termFormat ChineseTraditionalLanguage Upstream "上游的")	domainEnglishFormat.kif 60663-60663
(termFormat EnglishLanguage Upstream "upstream")	domainEnglishFormat.kif 60662-60662

antecedent

(=>
    (orientation ?O1 ?O2 Upstream)
    (exists (?T ?L ?P)
        (and
            (instance ?T Transfer)
            (attribute ?L Liquid)
            (path ?T ?P)
            (origin ?T ?O1)
            (beforeOnPath ?O1 ?O2 ?P ?T)
            (destination ?T ?O2))))

Mid-level-ontology.kif 29815-29824

If an object is upstream to another object,
then there exist a transfer, a third object and a fourth object such that the transfer is an instance of transfer and liquid is an attribute of the third object and the fourth object is path along which the transfer occurs and the transfer originates at the object and the object before the other object on path the fourth object during the transfer and the transfer ends up at the other object

consequent

(=>
(flows ?FLUID1 ?FLUID2)
(orientation ?FLUID1 ?FLUID2 Upstream))

Geography.kif 5446-5448

If an object is a flows of another object,
then the other object is upstream to the object

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