Technically there are two ways you can go about this.
1) You can make use of the highlight words feature which you can find in Master Settings. You can even make a sound go off if one of the words is mentioned. I've included a screenshot of this setting below

2) For your trivia game inparticular, you could make use of the in-built minigame "Guessing Game". There are the settings relating to that

Kind Regards
Dante557