Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (<10uM)?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. Fc1ccccc1Cn1ccc2c(OC3CCN(Cc4ccccn4)CC3)ncnc21
b. COC[C@H](C)Oc1cc(Oc2ncc(C(=O)N3CCC3)cc2Cl)cc(C(=O)Nc2cnc(C)cn2)c1
c. CN(C)C(=N)c1ccc(C(=O)Nc2ccc(Oc3ccc(C(=O)O)cc3)cc2C(=O)Nc2ccc(Cl)cn2)cc1
d. CCC[C@@H](C=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(C)C)NC(=O)OCc1ccccc1
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}
7-[(2-fluorophenyl)methyl]-4-[1-(pyridin-2-ylmethyl)piperidin-4-yl]oxypyrrolo[2,3-d]pyrimidine