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, b, c, or d without using any other words.
Options:
[a] COCCOC#Cc1cc(-c2n[nH]c3c2Cc2ccc(Cn4cncn4)cc2-3)cs1
[b] O=[N+]([O-])c1ccc(CCN2CCN(CCc3ccc([N+](=O)[O-])cc3)CC2)cc1
[c] CC[C@H](Nc1nc(N)nc(N)c1C#N)c1nc2cccc(C#CCCCC(=O)N3CCOCC3)c2c(=O)n1-c1ccccc1
[d] O=C1CSC(=O)N1C(CCc1ccncc1)COc1ccc(-c2cccc([N+](=O)[O-])c2)cc1
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}
1,4-bis[2-(4-nitrophenyl)ethyl]piperazine