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, b, c, d, or e without using any other words.
Options:
a Cc1cc(N2CCC(N3CCCC3C)C2)ccc1NC(=O)c1ccccc1F
b O=C(N[C@H](CO)[C@H](O)c1ccc([N+](=O)[O-])cc1)C(Cl)Cl
c O=C1COc2ccc(CNC3CCN(CCn4c(=O)ccc5ncc(Oc6cncc(F)c6)cc54)CC3)nc2N1
d Cc1cnc(NC(=O)[C@H](COC2CCC2)Oc2ncnc3c2cnn3-c2ncccc2Cl)cn1
e COC[C@H](C)Oc1cc(Oc2cnc(C(=O)N3CCC3)cn2)cc(C(=O)Nc2cnc(C)cn2)c1
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}
2-fluoro-N-[2-methyl-4-[3-(2-methylpyrrolidin-1-yl)pyrrolidin-1-yl]phenyl]benzamide