Task: Please answer the multiple choice question.
Question: Which molecules are not 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. CCN(CCO)C(=O)c1cc2ccccn2c1-c1cccc(OC)c1
b. Cc1cc(-c2ccc3c(c2)CCN(CCCSc2nnc(-c4ccccc4)n2C)CC3)no1
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}
N-ethyl-N-(2-hydroxyethyl)-3-(3-methoxyphenyl)indolizine-2-carboxamide