http://imce.jpl.nasa.gov/foundation/mission#joins
Property mission:joins

rdfs:label

joins

oml:relationEntity

mission:Joins

oml:type

oml:ForwardRelation

rdf:type

	owl:AsymmetricProperty
	owl:IrreflexiveProperty
	owl:ObjectProperty

rdfs:domain

mission:Junction

rdfs:range

mission:Interface

rdfs:subPropertyOf

mission:joins

owl:inverseOf

mission:isJoinedIn