Here is a listing for an SVG group with a rectangle object.

  <g                                                         
     inkscape:label="Layer 1"                                
     inkscape:groupmode="layer"                              
     id="layer1">                                            
    <rect                                                    
       style="fill:#0000ff;fill-opacity:0.75000000;fill-r... 
       id="rect1351"                                         
       width="100.00000"                                     
       height="100.00000"                                    
       x="25.000000"                                         
       y="25.000000" />                                   
  </g>                                                       

  

	Start of SVG group.
	SVG group label. (Displayed in Layer pull-down menu if mode type is layer.)
	SVG group id.
	Type of SVG group (an Inkscape layer).
	SVG rectangle object.
	Rectangle style. (The line has been truncated.)
	Rectangle width and height.
	Rectangle x and y positions followed by close mark ("/>").
	Close of SVG group.