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. CCc1ccc(C=C2SC(=S)NC2=O)cc1
b. CCc1cc(C(SC[C@H](N)C(=O)O)(c2ccccc2)c2ccccc2)ccc1C
Answer: a, 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-ethylphenyl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one