public Set<MediaType> getSupportedTypes(ParseContext context) {
        return SUPPORTED_TYPES;
    }
How long do we allow a text run to claim to be, before we
decide we're confused and it's not really text after all?
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-cad-module/src/main/java/org/apache/tika/parser/prt/PRTParser.java