1 2 0 http://purl.obolibrary.org/obo/VO_0000506 vaccine organism 'vaccine organism' SubClassOf http://purl.obolibrary.org/obo/RO_0000087 some 'immunization target role' 'vaccine organism' SubClassOf http://purl.obolibrary.org/obo/RO_0000087 some 'vaccine role' 'vaccine organism' EquivalentTo http://purl.obolibrary.org/obo/OBI_0100026 and (http://purl.obolibrary.org/obo/RO_0000087 some 'vaccine role') http://purl.obolibrary.org/obo/VO_0001170 vaccine strain 'vaccine strain' SubClassOf http://purl.obolibrary.org/obo/RO_0000087 some 'vaccine strain role' 'vaccine strain' EquivalentTo http://purl.obolibrary.org/obo/RO_0000087 some 'vaccine strain role' 'vaccine strain' SubClassOf 'vaccine organism' http://purl.obolibrary.org/obo/VO_0001182 vaccine strain role 'vaccine strain role' SubClassOf 'vaccine role'