// rendition vocab for 'meta' properties is not the same as for the 'item'
// properties)
// Messages are reported only on the first invocation; a quiet reporter is
// used for subsequent invocations.
String prefixDecl = e.getAttribute("prefix");
MessageLocation loc = new MessageLocation(path, parser.getLineNumber(),
parser.getColumnNumber());
metaVocabs = VocabUtil.parsePrefixDeclaration(prefixDecl, RESERVED_META_VOCABS,
KNOWN_META_VOCAB_URIS, DEFAULT_VOCAB_URIS, report, loc);
itemVocabs = VocabUtil.parsePrefixDeclaration(prefixDecl, RESERVED_ITEM_VOCABS,
KNOWN_ITEM_VOCAB_URIS, DEFAULT_VOCAB_URIS, QuietReport.INSTANCE, loc);