question: At that time , who helped develop materialism ?
answer: Ajita Kesakambali , Payasi , Kanada , and the proponents of the Cārvāka school of philosophy
turker_answer: At that time , Ajita Kesakambali , Payasi , Kanada , and the proponents of the Cārvāka school of philosophy helped develop materialism .
rule-based: At that time , Ajita Kesakambali , Payasi , Kanada , and the proponents of the Cārvāka school of philosophy helped develop materialism .