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 or b without using any other words.
Options:
a.) COc1ccccc1[C@@H](C)N[C@@H]1CC[C@@H](C(=O)N2CCC(C(=O)N3CCCC3)(c3ccccc3)CC2)C(C)(C)C1
b.) CN1CCC[C@@H]1Cn1nc(Cc2ccc(Cl)cc2)c2cccnc2c1=O
Answer: b
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}
5-[(4-chlorophenyl)methyl]-7-[[(2R)-1-methylpyrrolidin-2-yl]methyl]pyrido[2,3-d]pyridazin-8-one