Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] COc1cc(OC(C)C)cc(S(=O)(=O)c2ccc3c(c2)O[C@H]2CNCC[C@@H]32)c1
[b] NC1=N[C@@]2(CO1)c1cc(-c3cccnc3F)ccc1Oc1cnc(-c3ccnc(F)c3)cc12
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}
(4aS,9aR)-7-(3-methoxy-5-propan-2-yloxyphenyl)sulfonyl-1,2,3,4,4a,9a-hexahydro-[1]benzofuro[2,3-c]pyridine