question: What does Commodus do to regain his popularity over Maximus ?
answer: He challenges Maximus to a duel in the Colosseum
turker_answer: In order to regain his popularity over Maximus , Commodus challenges him to a duel in the Colosseum .
rule-based: Commodus he challenges Maximus to a duel in the Colosseum to regain his popularity over Maximus .