<https://larryullman.com/forums/index.php?/topic/3330-ch-7-strategy-patern-uml/#comment-20283>
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"Okay, good to know. My apologies again for not being helpful here! "
<https://larryullman.com/forums/index.php?/topic/3330-ch-7-strategy-patern-uml/#comment-20178>