Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: C[C@H](NC(=O)Cc1cc(F)cc(F)c1)C(=O)N[C@H](C(=O)OC(C)(C)C)c1ccccc1
b: COCCN1CCN(c2cc(Nc3ncc(C#N)s3)ncn2)CC1
c: Cc1ccc(CN2CCC(CNC(=O)c3cc(Cl)cc(Cl)c3)CC2)cc1
d: Cc1nc([C@]2(c3cnn(C)c3)N[C@@H](c3nc(-c4ccccc4)c[nH]3)Cc3c2[nH]c2ccccc32)no1
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}
tert-butyl (2S)-2-[[(2S)-2-[[2-(3,5-difluorophenyl)acetyl]amino]propanoyl]amino]-2-phenylacetate