Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (IC50 less than 10uM)?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a. CCN(CCCNC(=O)COc1cc(=O)n(CC)c2ccccc12)c1ccccc1
b. Cc1nc(NC(=O)c2ccc(Br)s2)sc1C(=O)N(C)C
c. CC(=O)Nc1cccc(Oc2cc(C#N)c(C#N)cc2N2CCOCC2)c1
d. CC#CCCCC(=O)Nc1cccc(C(=O)O)c1
Answer: a
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}