http://www.someserver.com/wfs.cgi?
SERVICE=WFS&
VERSION=1.1.0&
REQUEST=GetFeature&
NAMESPACE=xmlns(app=http://www.deegree.org/app)&
TYPENAME=app:Philosopher&
FILTER=<Filter xmlns="http://www.opengis.net/ogc" xmlns:app="http://www.deegree.org/app"><PropertyIsLike wildCard="*" singleChar="#" escapeChar="!"><PropertyName>app:name</PropertyName><Literal>*Sartre*</Literal></PropertyIsLike></Filter>