It's so rare you get an NPC to admit that their output is a direct result of an input.  function formMyOpinion ( othersOpinion ) {   if ( othersOpinion.source == 'left' || othersOpinion.sourceAssumption == 'left' )     output = 'bad';   } else {     output = 'good';   }   return output; }  Have an upvote!