Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) Clc1ccc(OCCCc2cccc(CCCOc3ccc(Cl)cc3)n2)cc1
(b) Cc1nc2ccccc2n1C1CC2CCC(C1)N2CCC1(c2ccccc2)CCN(C(=O)c2ccc3c(c2)CC(=O)NS3(=O)=O)CC1
Answer: a
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}
2,6-bis[3-(4-chlorophenoxy)propyl]pyridine