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 or b without using any additional words.
Options:
a) COC(=O)CCC(=O)OC1(C)C(=O)C2=CN(C3CCCC3)C(c3ccc(OC)cc3)=CC2=C(Br)C1=O
b) CCCCOC(=O)C1CN(c2ccccc2)N=C1C(=O)OCC
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}