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 additional words.
Options:
a: OC(c1cccnc1)(c1cccnc1)C(c1ccccc1)N1CCOCC1
b: OC(c1ccc(CN2CCC3(CC2)OCc2cc(F)ncc23)cc1)c1ccc(F)c(F)c1
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}
2-morpholin-4-yl-2-phenyl-1,1-dipyridin-3-ylethanol