anchor.diff:          +item #[+a("#tokenizer-exceptions") Tokenizer exceptions]
           +item #[+a("#norm-exceptions") Norm exceptions]
           +item #[+a("#lex-attrs") Lexical attributes]
  +        +item #[+a("#syntax-iterators") Syntax iterators]
           +item #[+a("#lemmatizer") Lemmatizer]
           +item #[+a("#tag-map") Tag map]
           +item #[+a("#morph-rules") Morph rules]
  
positive.code:     |  dictionary in the language's defaults via
      |  #[code lex_attr_getters.update(LEX_ATTRS)], only the new custom functions
      |  are overwritten.
  
  +h(3, "lemmatizer") Lemmatizer
  
  
negative.code:         +cell #[code LEX_ATTRS]
          +cell dict
          +cell Attribute ID mapped to function.
  
      +row
          +cell #[code SYNTAX_ITERATORS]
          +cell dict
          +cell
              |  Iterator ID mapped to function. Currently only supports
              |  #[code 'noun_chunks'].
  
      +row
          +cell #[code LOOKUP]
  