Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) O=S(=O)(c1ccc(Cl)cc1)C1(F)CCN(CCc2ccc(F)cc2F)CC1
(b) C[C@@H]1c2nnc(-c3nc(C(F)(F)F)ns3)n2CCN1C(=O)c1ccc(F)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}
4-(4-chlorophenyl)sulfonyl-1-[2-(2,4-difluorophenyl)ethyl]-4-fluoropiperidine