Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: CN(Cc1ccc(F)cc1)c1cc(C(=O)Nc2nncs2)ncn1
b: CCOc1nc(C(=O)Nc2ccc[n+](C)c2)cc(N)c1C#N
c: O=C(Nc1ccc(F)cn1)[C@H](CN1CC(O)C1)Oc1ncnc2c1cnn2-c1c(F)cccc1Cl
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}
6-[(4-fluorophenyl)methyl-methylamino]-N-(1,3,4-thiadiazol-2-yl)pyrimidine-4-carboxamide