Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. C[C@@H]1NC(c2cnccn2)=N[C@@]1(c1ccc(F)cc1)c1ccc(F)nc1
b. Fc1cc2c(cn1)C1(CCN(Cc3ccc(Oc4ccc(F)c(F)c4)cc3)CC1)OC2
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'-[[4-(3,4-difluorophenoxy)phenyl]methyl]-6-fluorospiro[1H-furo[3,4-c]pyridine-3,4'-piperidine]