Task: Please answer the multiple choice question.
Question: Which molecules are 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) COc1ccc2[nH]c3c(c2c1)CC1c2cc4c(cc2CCN1C3)OCO4
(b) CNCc1cc(F)ccc1Oc1ccc(F)c(Cl)c1
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}
1-[2-(3-chloro-4-fluorophenoxy)-5-fluorophenyl]-N-methylmethanamine