(example of XML) contains a single well-formed XML fragment demonstrating the use of some XML element or
attribute, in which the egXML element itself functions as the root element.
indicates the intended validity of the example with respect to
a schema.
the example is intended to be fully valid,
assuming that its root element can be used as the root element in the
schema concerned.
the example could be transformed into
a valid document by inserting any number of valid attributes and child
elements anywhere within it; it is valid against a version of the
schema concerned in which every data, list, element, or attribute
element has been made optional.
the example is not intended to be valid,
and contains deliberate errors.