Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a. FC(F)(F)Oc1ccc(Cl)c(CN[C@H]2CCC3CC[C@]2(c2ccccc2)N3)c1
b. CCNC(=O)Nc1ccc2ncc(Nc3ccc(C)cc3)nc2n1
c. Cc1cc(CN2CCN(c3c(Cl)cnc4[nH]c(-c5cn(C)nc5C5CC5)nc34)CC2)no1
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_blocker%}
Answer: {%multiple_choice_result}
1-ethyl-3-[3-(4-methylanilino)pyrido[2,3-b]pyrazin-6-yl]urea