anchor.diff:  * ``DECREASING_STRENGTH_IF_AVAILABLE``: If the model supports <<planningValueStrength,planning value strength comparison>>, behave like ``DECREASING_STRENGTH``, else like ``NONE``.
   * ``NONE``: Try the planning values in original order.
   
  -Advanced detailed configuration.
  -For example, a <<weakestFitDecreasing,Weakest Fit Decreasing>> configuration for a single entity class with a single variable:
  +Advanced configuration with <<weakestFitDecreasing,Weakest Fit Decreasing>> for a single entity class with two variables:
   
   [source,xml,options="nowrap"]
   ----
  
positive.code: [[cheapestInsertionConfiguration]]
  === Configuration
  
  Simplest configuration of Cheapest Insertion:
  
  [source,xml,options="nowrap"]
  ----
  
negative.code: [[strongestFitDecreasingConfiguration]]
  === Configuration
  
  Simple configuration:
  
  [source,xml,options="nowrap"]
  ----
  