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] O=c1cc(OCc2ccc(F)cc2)ccn1-c1ccc(OCCN2CCCC2)cc1
[b] CN(C)c1ccc(/C=C/c2c(F)cccc2Cl)cn1
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-[(E)-2-(2-chloro-6-fluorophenyl)ethenyl]-N,N-dimethylpyridin-2-amine