Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] COc1cccc(C(=O)N2CCC(n3nccc3NC(=O)C(OC)c3ccccc3)CC2)c1
[b] CCOC(=O)N1CCN(Cc2nc(N)nc(Nc3ccc(OCC)cc3)n2)CC1
[c] COc1ccccc1C(=O)Nc1ccc(OC(C)C(=O)N2CCOCC2)cc1
[d] COc1ccc(C)cc1NC(=O)CN(c1ccc(C)cc1)S(C)(=O)=O
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__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_inhib%}
Answer: {%multiple_choice_result}