Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: Cn1cc([C@H]2C[C@H]3CSC(N)=N[C@@]3(c3ccc(F)cc3F)CO2)cn1
b: CNC(=O)c1cc2cc(C3(Cc4ccccc4)CCNC3)ccc2[nH]1
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}
(4aR,6R,8aS)-8a-(2,4-difluorophenyl)-6-(1-methylpyrazol-4-yl)-4a,5,6,8-tetrahydro-4H-pyrano[3,4-d][1,3]thiazin-2-amine