@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix vann: <http://purl.org/vocab/vann/> . @prefix owl: <http://www.w3.org/2002/07/owl#> . vann:preferredNamespaceUri a owl:AnnotationProperty . 
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix vann: <http://purl.org/vocab/vann/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .

vann:preferredNamespaceUri
    a owl:AnnotationProperty .