Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: CCC1CCc2sc(C(=O)NCC(c3ccccc3OC)N3CCCC3)cc2C1
b: CCOC(=O)c1snc(C(=O)NC2CCCCC2)c1N
c: CCN(CC)S(=O)(=O)c1ccc(-c2csc(C)n2)cc1
d: Cc1ccc(C2=NN(CCC(=O)NC3CCCC3)C(=O)CC2)cc1
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}