@Override
    public Void visitStringLiteral(final GremlinParser.StringLiteralContext ctx) {
        return anonymize(ctx, String.class);
    }
Anonymizes the given context by replacing the text with a lower case version of the class name and a number
that is incremented for each unique value.

@param ctx   the context to anonymize
@param clazz the class of the context
@return null
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/language/translator/AnonymizedTranslatorVisitor.java