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, b, or c without using any additional words.
Options:
a. CCCCCCCCCCCCCC(=O)N[C@H](CO)[C@H](O)c1ccc([N+](=O)[O-])cc1
b. O=C(NCCCCO)c1ccc(OCc2cccc(Cl)c2)c(Cl)c1
c. COc1cccc2cc3n(c12)CCN(CCCCN1CCn2c(cc4ccccc42)C1=O)C3
Answer: c
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-[4-(6-methoxy-3,4-dihydro-1H-pyrazino[1,2-a]indol-2-yl)butyl]-3,4-dihydropyrazino[1,2-a]indol-1-one