Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (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. O=C(Nc1ccncc1)c1cc(S(=O)(=O)N2CCCCC2)ccc1Cl
b. COc1ccccc1C(CNC(=O)COc1ccccc1C)N1CCCC1
c. COc1cc(C)c(NC(=O)C2CCN(S(=O)(=O)c3cccs3)CC2)cc1OC
d. O=C(Cc1cccc2ccccc12)NCCc1ccccc1
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}