Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. COc1ccc2ncc(F)c([C@H](O)[C@@H](O)C34CCC(NCc5ccc6c(n5)NC(=O)CO6)(CC3)CO4)c2n1
b. Cc1nc2ccccc2c(=O)n1-c1ccc(OC2CCC(N3CCCC3)CC2)cc1
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}
2-methyl-3-[4-(4-pyrrolidin-1-ylcyclohexyl)oxyphenyl]quinazolin-4-one