question: What drugs were related to a kickback scheme ?
answer: Imitrex , Lotronex , Flovent , and Valtrex
turker_answer: Imitrex , Lotronex , Flovent , and Valtrex were related to a kickback scheme .
rule-based: Related to a kickback scheme were Imitrex , Lotronex , Flovent , and Valtrex .