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, c, or d without using any other words.
Options:
(a) COC[C@H]1OC(=O)c2coc3c2[C@@]1(C)C1=C(C3=O)[C@@H]2CC[C@H](O)[C@@]2(C)C[C@H]1OC(C)=O
(b) O=S(=O)(c1ccc(C=Cc2ccc(F)cc2Cl)nc1)c1ccccc1F
(c) COc1ccc2ncc(F)c([C@@H](O)CC[C@@H]3CCN(C4CC(c5ccno5)C4)C[C@@H]3C(=O)O)c2c1
(d) COc1cc2c(Nc3cc(CC(=O)Nc4cccc(F)c4F)[nH]n3)ncnc2cc1OCCCN1CCC[C@@H]1CO
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}
2-[2-(2-chloranyl-4-fluoranyl-phenyl)ethenyl]-5-(2-fluorophenyl)sulfonyl-pyridine