anchor.diff:  * Graph6 - Static property access
   * Graph7 - Dynamic property access
   * Graph8 - Property keys function
  -* Graph9 - Property existence check
  -* Graph10 - Retrieve all properties as a property map
  +* Graph9 - Retrieve all properties as a property map
   
   === List
   
  
positive.code: * Set3 - Set a Label
  * Set4 - Set all properties with a map
  * Set5 - Set multiple properties with a map
  
  === Union
  
  
negative.code: 
  * Remove1 - Remove a Property
  * Remove2 - Remove a Label
  * Remove3 - Persistence of remove clause side effects
  
  === Return
  
  