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, b, c, or d without using any other words.
Options:
a.) O=C(CN1C(=O)S/C(=C\c2ccc(Cl)cc2)C1=O)NCCCn1ccnc1
b.) CC1=C(C(=O)Nc2cccc(F)c2)C(c2ccsc2)C2=C(CC(C)(C)CC2=O)N1
c.) Cc1ccc(CNC(=O)Cc2noc3ccccc23)cc1
d.) CCC(=O)c1coc2ccc(O)cc12
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}