question: What was one of Albert the Great 's biggest contributions during the medieval period ?
answer: his study of Dionysus the Areopagite
turker_answer: One of Albert the Great 's biggest contributions during the medieval period was his study of Dionysus the Areopagite .
rule-based: One of Albert the Great 's biggest contributions during the medieval period was his study of Dionysus the Areopagite .