4XPath version 1.0b3 4XPath command-line application `show detailed help message` `Display program version and exit` `Bind a top-level parameter` `Define a namespace/prefix binding` `Display a stack trace when an error occurs` `Print the string-value of the results` The URI of the XML document to parse, or "-" to indicate standard input. The document's root node will be used as the context node. The XPath expression to evaluate