anchor.diff:  # to the explicit mapping:
   ipod, i-pod, i pod => ipod
   
  -#multiple synonym mapping entries are merged.
  +# Multiple synonym mapping entries are merged.
   foo => foo bar
   foo => baz
  -#is equivalent to
  +# is equivalent to
   foo => foo bar, baz
   --------------------------------------------------
   
  
positive.code: --------------------------------------------------
  
  However, it is recommended to define large synonyms set in a file using
  `synonyms_path`.
  
  [float]
  ==== WordNet synonyms
  
negative.code: 
  [source,js]
  --------------------------------------------------
  # Blank lines and lines starting with pound are comments.
  
  # Explicit mappings match any token sequence on the LHS of "=>"
  # and replace with all alternatives on the RHS.  These types of mappings
  # ignore the expand parameter in the schema.
  # Examples:
  i-pod, i pod => ipod,
  sea biscuit, sea biscit => seabiscuit
  
  # Equivalent synonyms may be separated with commas and give
  # no explicit mapping.  In this case the mapping behavior will
  # be taken from the expand parameter in the schema.  This allows
  # the same synonym file to be used in different synonym handling strategies.
  # Examples:
  ipod, i-pod, i pod
  foozball , foosball
  universe , cosmos
  