http://www.w3.org/TR/SVG11/feature#SVG
http://www.w3.org/TR/SVG11/feature#SVGDOM
http://www.w3.org/TR/SVG11/feature#SVG-static
http://www.w3.org/TR/SVG11/feature#SVGDOM-static
http://www.w3.org/TR/SVG11/feature#SVG-animation
http://www.w3.org/TR/SVG11/feature#SVGDOM-animation
http://www.w3.org/TR/SVG11/feature#SVG-dynamic
http://www.w3.org/TR/SVG11/feature#SVGDOM-dynamic
http://www.w3.org/TR/SVG11/feature#CoreAttribute
http://www.w3.org/TR/SVG11/feature#Structure
http://www.w3.org/TR/SVG11/feature#BasicStructure
http://www.w3.org/TR/SVG11/feature#ContainerAttribute
http://www.w3.org/TR/SVG11/feature#ConditionalProcessing
http://www.w3.org/TR/SVG11/feature#Image
http://www.w3.org/TR/SVG11/feature#Style
http://www.w3.org/TR/SVG11/feature#ViewportAttribute
http://www.w3.org/TR/SVG11/feature#Shape
http://www.w3.org/TR/SVG11/feature#Text
http://www.w3.org/TR/SVG11/feature#BasicText
http://www.w3.org/TR/SVG11/feature#PaintAttribute
http://www.w3.org/TR/SVG11/feature#BasicPaintAttribute
http://www.w3.org/TR/SVG11/feature#OpacityAttribute
http://www.w3.org/TR/SVG11/feature#GraphicsAttribute
http://www.w3.org/TR/SVG11/feature#BasicGraphicsAttribute
http://www.w3.org/TR/SVG11/feature#Marker
http://www.w3.org/TR/SVG11/feature#ColorProfile
http://www.w3.org/TR/SVG11/feature#Gradient
http://www.w3.org/TR/SVG11/feature#Pattern
http://www.w3.org/TR/SVG11/feature#Clip
http://www.w3.org/TR/SVG11/feature#BasicClip
http://www.w3.org/TR/SVG11/feature#Mask
http://www.w3.org/TR/SVG11/feature#Filter
http://www.w3.org/TR/SVG11/feature#BasicFilter
http://www.w3.org/TR/SVG11/feature#DocumentEventsAttribute
http://www.w3.org/TR/SVG11/feature#GraphicalEventsAttribute
http://www.w3.org/TR/SVG11/feature#AnimationEventsAttribute
http://www.w3.org/TR/SVG11/feature#Cursor
http://www.w3.org/TR/SVG11/feature#Hyperlinking
http://www.w3.org/TR/SVG11/feature#XlinkAttribute
http://www.w3.org/TR/SVG11/feature#View
http://www.w3.org/TR/SVG11/feature#Script
http://www.w3.org/TR/SVG11/feature#Animation
http://www.w3.org/TR/SVG11/feature#Font
http://www.w3.org/TR/SVG11/feature#BasicFont
http://www.w3.org/TR/SVG11/feature#Extensibility