4Versa command-line query application
Note: this is a general-purpose Versa tool. If you wish to query a 4Suite
repository, you may find '4ss rdf versa' more convenient.
The default non-validating reader instance, created from
NonvalidatingReaderBase() with no constructor arguments.
Uses the default InputSource factory. If you need to change it,
reassign the inputSourceFactory attribute, or, preferably, just
create a new NonvalidatingReaderBase instance.