question: @ VisibleForTesting protected String createPrefixesInformation ( ) { StringBuilder prefixBuilder = new StringBuilder ( ) ; for ( String pre : prefixes . keySet ( ) ) { prefixBuilder . append ( "@prefix " ) ; prefixBuilder . append ( pre ) ; prefixBuilder . append ( ": <" ) ; prefixBuilder . append ( prefixes . get ( pre ) ) ; prefixBuilder . append ( "> .\n" ) ; } return prefixBuilder . toString ( ) ; }
target:  Write all the prefixes needed in a String representation.