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, or d without using any additional words.
Options:
a: COC(=O)NCCc1ccccc1-c1ccc([C@H]2CNCC[C@H]2c2ccn(C)c(=O)c2)c(Cl)c1
b: C=C[C@H]1CN2CC[C@@H]1C[C@@H]2[C@@H](O)c1ccnc2ccc(OC)cc12
c: N#Cc1ccc(Cn2cncc2CC[NH2+][C@H]2CCN(c3ccccc3)C2=O)cc1
d: CC(C)=CCn1c(N2CCC[C@@H](N)C2)nc2c1c(=O)n(Cc1nccc3ccccc13)c(=O)n2C
Answer: b, c, d
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-[3-[(4-cyanophenyl)methyl]imidazol-4-yl]ethyl-[(3S)-2-oxidanylidene-1-phenyl-pyrrolidin-3-yl]azanium