| lrx | 
                                 union of(xs:double, xs:decimal, restriction of xs:token) | 
                                  | 
                                  | 
                                 optional | 
                                  | 
                                 
                                    
                                       
                                          
                                             gives the x coordinate value for the lower right corner of a rectangular
space.  | 
                                           
                                        
                                     
                                  | 
                              
                              
                                 | lry | 
                                 union of(xs:double, xs:decimal, restriction of xs:token) | 
                                  | 
                                  | 
                                 optional | 
                                  | 
                                 
                                    
                                       
                                          
                                             gives the y coordinate value for the lower right corner of a rectangular
space.  | 
                                           
                                        
                                     
                                  | 
                              
                              
                                 | points | 
                                 restriction of list of union of(restriction of xs:token, restriction of xs:token, restriction of xs:token, restriction of xs:token) | 
                                  | 
                                  | 
                                 optional | 
                                  | 
                                 
                                    
                                       
                                          
                                             identifies a two dimensional area within the bounding box specified by the
other attributes by means of a series of pairs of numbers, each of which gives the x,y
coordinates of a point on a line enclosing the area.  | 
                                           
                                        
                                     
                                  | 
                              
                              
                                 | start | 
                                 xs:anyURI | 
                                  | 
                                  | 
                                 optional | 
                                  | 
                                 
                                    
                                       
                                          
                                             indicates the element within a transcription of the text containing at
least the start of the writing represented by this zone or surface.  | 
                                           
                                        
                                     
                                  | 
                              
                              
                                 | ulx | 
                                 union of(xs:double, xs:decimal, restriction of xs:token) | 
                                  | 
                                  | 
                                 optional | 
                                  | 
                                 
                                    
                                       
                                          
                                             gives the x coordinate value for the upper left corner of a rectangular
space.  | 
                                           
                                        
                                     
                                  | 
                              
                              
                                 | uly | 
                                 union of(xs:double, xs:decimal, restriction of xs:token) | 
                                  | 
                                  | 
                                 optional | 
                                  | 
                                 
                                    
                                       
                                          
                                             gives the y coordinate value for the upper left corner of a rectangular
space.  | 
                                           
                                        
                                     
                                  |