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) CCN1C[C@@H]2C[C@@H](NC3CCOCC3OC)C[C@]2(C(=O)N2CCc3ncc(C(F)(F)F)cc3C2)C1
b) O=C1COc2ccc(CNC34CCC(CCc5ccnc6cc(C(F)(F)F)cnc56)(CC3)OC4)nc2N1
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}
6-[[[1-[2-[7-(trifluoromethyl)-1,5-naphthyridin-4-yl]ethyl]-2-oxabicyclo[2.2.2]octan-4-yl]amino]methyl]-4H-pyrido[3,2-b][1,4]oxazin-3-one