• "Ordered entities"
  Definition: If this criterion of strategy is selected then entities are searched in sources following a given order. Each entity order will appear in its label.
  Default: False (unchecked)
  not checked by default. .
• "Only given entities"
  Definition: If this criterion of strategy is selected then only the selected entities are considered in the answers. If this criterion is not checked, other entities may be considered.
  Default: False (unchecked) 
• "Source once for all"
  Definition:  If this criterion is checked each source is considered only once in the answers.
  Default: False (unchecked)   

1. Setting the strategy from the main window:
     

OR

2. Setting the strategy from the Query menu: