anchor.diff:  |===
   
   All these methods have an empty default implemention inside the ``RuleUnit`` interface, so their implementation is optional.
  -At this point it is possible to add one or more rules to this rule unit. By default all the rules in a drl file are automatically
  -associated to a rule unit following a naming convetion on the name of drl file itself: if the drl file is in the same package
  +At this point, it is possible to add one or more rules to this rule unit. By default all the rules in a drl file are automatically
  +associated to a rule unit following a naming convention of the name of drl file itself: if the drl file is in the same package
   and has the same name of a class implementing the ``RuleUnit`` interface all the rules in that drl file will implicitly belong
  -to that unit. So for example all the rules in the drl file named AdultUnit.drl in package org.mypackage.myunit will be automatically
  +to that unit. For example, all the rules in the drl file named AdultUnit.drl in package org.mypackage.myunit will be automatically
   part of the rule unit ``org.mypackage.myunit.AdultUnit``.
   
  -It is also allowed to avoid using this naming convention and explictly declare to which unit the rules in a drl file belongs
  -by using the new ``unit`` keyword. The unit declaration must always immediately follow the package declaration and contains
  -the name of the class (in that package) to which the rules of the drl file are part like in:
  +You can avoid using this naming convention and explictly declare the unit to which the rules in a drl file belongs
  +by using the new ``unit`` keyword. The unit declaration must always immediately follow the package declaration and contain
  +the name of the class (in that package) to which the rules of the drl file are part of. For example,
   
   .A rule belonging to the rule unit
   [source]
  
positive.code: executor.run( adultUnit );
  ----
  
  that in this case will produce the following output:
  
  [source]
  ----
  
negative.code: FactHandle marioFh = persons.insert( mario );
  ----
  
  Modify the fact, optionally specifying the set of properties that have been modified in order to leverage property reactivity:
  
  [source,java]
  ----
  