Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) COC(=O)N(Cc1ccc2c(n1)NC(=O)CO2)C12CCC(CCc3c(F)cnc4ccc(OC)nc34)(CC1)OC2
(b) CC(C)[C@@H](Oc1ccc(CNC(=O)[C@@H]2CCCN2C(=O)CC(N)Cc2cc(F)ccc2F)cc1)C(=O)O.O=C(O)C(F)(F)F
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}
methyl N-[1-[2-(3-fluoro-6-methoxy-1,5-naphthyridin-4-yl)ethyl]-2-oxabicyclo[2.2.2]octan-4-yl]-N-[(3-oxo-4H-pyrido[3,2-b][1,4]oxazin-6-yl)methyl]carbamate