I am new to the rules engine and I am trying to create a rules engine in javascript.

I have the following rule and Passing one parameter as the wrong input, how to find which argument (fact) is mismatched (not the rule).

  engine.addRule({
    conditions: {
      all: [{
        fact: 'score',
        operator: 'greaterThanInclusive',
        value: 200
      }, {
        fact: 'players',
        operator: 'equal',
        value: 10
      }]
    },
    event: { 
        type: 'success',
    }
})

let fact = {
   score: 150,
   players: 10
}

It will fail the rule. How do I know which fact cause the failure of rule?