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 additional words.
Options:
a: CCc1c(CCN2CCN(C(=O)Cc3ccc(-n4cnnn4)cc3)CC2)ccc2c1COC2=O
b: COC(=O)c1ccc(C2=CC3(CCNCC3)Oc3ccccc32)cc1
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}
methyl 4-spiro[chromene-2,4'-piperidine]-4-ylbenzoate