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] COc1ccc2ncc(=O)n(CCN3CCC(NCc4cnc(C)c(C#N)c4)CC3)c2n1
[b] CC1(c2nc(-c3ccccc3)c[nH]2)Cc2c([nH]c3ccccc23)C(C2CCOCC2)N1
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}
3-methyl-1-(oxan-4-yl)-3-(4-phenyl-1H-imidazol-2-yl)-1,2,4,9-tetrahydropyrido[3,4-b]indole