Таблица
| 
			 Ancestor(ancestors_number)  | 
			
			 =  | 
			
			 +∞ ;  | 
		
| 
			 Ancestor-or-self(ancestors_number)  | 
			
			 =  | 
			
			 +∞ ;  | 
		
| 
			 Attribute(ancestors_number)  | 
			
			 =  | 
			
			 max(ancestors_number - 1; 0) ;  | 
		
| 
			 Child(ancestors_number)  | 
			
			 =  | 
			
			 max(ancestors_number - 1; 0) ;  | 
		
| 
			 Descendant(ancestors_number)  | 
			
			 =  | 
			
			 max(ancestors_number - 1; 0) ;  | 
		
| 
			 Descendant-or-self(ancestors_number)  | 
			
			 =  | 
			
			 ancestors_number ;  | 
		
| 
			 Following(ancestors_number)  | 
			
			 =  | 
			
			 +∞ ;  | 
		
| 
			 Following-sibling(ancestors_number)  | 
			
			 =  | 
			
			 max(ancestors_number; 1) ;  | 
		
| 
			 Namespace(ancestors_number)  | 
			
			 =  | 
			
			 max(ancestors_number - 1; 0) ;  | 
		
| 
			 Parent(ancestors_number)  | 
			
			 =  | 
			
			 ancestors_number + 1 ;  | 
		
| 
			 Preceding(ancestors_number)  | 
			
			 =  | 
			
			 +∞ ;  | 
		
| 
			 Preceding-sibling(ancestors_number)  | 
			
			 =  | 
			
			 max(ancestors_number; 1) ;  | 
		
| 
			 Self(ancestors_number)  | 
			
			 =  | 
			
			 ancestors_number .  |