<http://webisa.webdatacommons.org/concept/_a-arm_>	<http://www.w3.org/2000/01/rdf-schema#label>	"a-arm" .
<http://webisa.webdatacommons.org/concept/_a-arm_>	<http://webisa.webdatacommons.org/ontology#hasHead>	"a-arm" .
<http://webisa.webdatacommons.org/concept/_a-arm_>	<http://www.w3.org/2002/07/owl#sameAs>	<http://dbpedia.org/resource/Control_arm> .