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, or c without using any other words.
Options:
a) CCOC(=O)N1CCC(N2C(=O)c3ccccc3C2Nc2ccc3c(C)cc(=O)oc3c2)CC1
b) CCn1c(COc2ccccc2C)nnc1SCC(=O)OC
c) Cc1ccc(S(=O)(=O)N2CCN(c3ncnc4c3cnn4-c3ccccc3)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}