Error parsing node of kind 'ERROR': {Node ERROR (0, 39) - (0, 252)} disease_tree?annotation=eq."{"dce:type":[{"datatype":"_IRI","meta":"owl:Axiom","object":"obo:ECO_0007637"}],"oio:hasDbXref":[{"datatype":"xsd:string","meta":"owl:Axiom","object":"url:http://www.merckmanuals.com/professional/sec04/ch032/ch032c.html"}]}" Err("Unexpected Node kind: ERROR")