http://opencaesar.io/sierra/function#Exchange
Class function:Exchange

oml:type

oml:RelationEntity

rdf:type

owl:Class

rdfs:subClassOf

	base:AggregatableElement
	function:Exchange
	owl:Thing

directDomainOf

function:conveys → function:Item

directHasRestrictionOn

	base:aggregates → all values from owl:Nothing
	base:aggregates → all values from owl:Nothing
	base:isAggregatedBy → all values from function:Chain
	base:isAggregatedBy → all values from function:Chain