Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a) O=c1cc[nH+]c(NCC2CCN(c3nc4ccccc4n3Cc3ccc(F)cc3)CC2)[nH]1
b) CC[NH+](CC)CC#CCOC(=O)C(O)(c1ccccc1)C1CCCCC1
c) O=C1N=c2ccccc2=[N+]1C1CC[NH+](CCCC(c2ccc(F)cc2)c2ccc(F)cc2)CC1
d) COCc1ccc(-n2cc(C3CC[NH+](CCN4CCNC4=O)CC3)c3cc(Cl)ccc32)cc1
Answer: a, 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-[[1-[1-[(4-fluorophenyl)methyl]benzimidazol-2-yl]piperidin-4-yl]methylamino]-1H-pyrimidin-3-ium-6-one