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] COc1ccc([C@H](N[C@@H]2CC[C@@H](C(=O)N3CCC(C(=O)N4CCCC4)(c4ccccc4)CC3)C(C)(C)C2)C(F)F)cc1
[b] CCN(CC)Cc1csc(-c2cn(CC3CCOCC3)c3c(Cl)cccc23)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}
N-[[2-[7-chloro-1-(oxan-4-ylmethyl)indol-3-yl]-1,3-thiazol-4-yl]methyl]-N-ethylethanamine