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) CN1CCN(CCCN2c3ccccc3Sc3ccc(Cl)cc32)CC1
(b) COc1cc(N2C(=O)N(c3ccc(-c4ccc(C(=O)O)cc4Cl)cc3)C(=O)C23CCN(Cc2ncccc2C)CC3)ncn1
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-chloro-10-[3-(4-methylpiperazin-1-yl)propyl]phenothiazine