http://opencaesar.io/sierra/requirement#isSpecificedBy
Property requirement:isSpecificedBy

oml:relationBase

requirement:specifies

oml:type

oml:ReverseRelation

rdf:type

	owl:FunctionalProperty
	owl:ObjectProperty

rdfs:domain

requirement:DesignElement

rdfs:range

requirement:Requirement

rdfs:subPropertyOf

requirement:isSpecificedBy

owl:inverseOf

requirement:specifies