Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. Cc1ccc(NC(=S)N/N=C2/CCCCc3ccccc32)cc1
b. CCCCN(CC)S(=O)(=O)c1ccc(C(=O)N(CCCN(C)C)c2nc3cc(C)cc(C)c3s2)cc1.Cl
Answer: b
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}