anchor.diff:  	val newMap = parser.parseExpression("map.?[value<27]").getValue()
   ----
   
  -
  -In addition to returning all the selected elements, you can retrieve only the
  -first or the last value. To obtain the first entry matching the selection, the syntax is
  +In addition to returning all the selected elements, you can retrieve only the first or
  +the last element. To obtain the first element matching the selection, the syntax is
   `.^[selectionExpression]`. To obtain the last matching selection, the syntax is
   `.$[selectionExpression]`.
   
  
positive.code: 			"members.?[nationality == 'Serbian']").getValue(societyContext) as List<Inventor>
  ----
  
  Selection is actually supported for arrays and anything that implements `java.lang.Iterable` or `java.util.Map`.
  For a list or array, the selection criteria is evaluated against each individual element. Against a map, the
  selection criteria is evaluated against each map entry (objects of the Java type
  `Map.Entry`). Each map entry has its key and value accessible as properties for use in
  the selection.
  
  The following expression returns a new map that consists of those elements of the original map
  where the entry value is less than 27:
  
  [source,java,indent=0,subs="verbatim,quotes",role="primary"]
  .Java
  
negative.code: source collection into another collection by selecting from its entries.
  
  Selection uses a syntax of `.?[selectionExpression]`. It filters the collection and
  returns a new collection that contains a subset of the original elements. For example,
  selection lets us easily get a list of Serbian inventors, as the following example shows:
  
  [source,java,indent=0,subs="verbatim,quotes",role="primary"]
  