2
http://schemas.opengis.net/gml/3.1.1/profiles/gmlsfProfile/1.0.0/gmlsf2.xsd
GML application schema used to assess compliance with the WFS 1.1 specification.
This schema conforms to level SF-2 of the Simple Features Profile (OGC 06-049):
there are no restrictions on the use of non-spatial properties.
Feature having feature reference property in order to evaluate XLink
processing behaviour.