Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. CCc1c(C2CCN(CCCSc3ccc(F)cc3)CC2)c2ccc(F)cc2n1CC(=O)O
b. COc1cc(OC)c(/C=C/S(=O)(=O)Cc2ccc(OC)c(NS(C)(=O)=O)n2)c(OC)c1
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-[2-ethyl-6-fluoro-3-[1-[3-(4-fluorophenyl)sulfanylpropyl]piperidin-4-yl]indol-1-yl]acetic acid