Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a) Cc1ccccc1CN1N=C(/C=C/c2ccccc2)CCC1=O
b) Cc1nn(C)c(C)c1S(=O)(=O)N1CCCC(C(=O)N2CCN(c3ccc(Cl)cc3)CC2)C1
c) Cc1nn(C)c(C)c1CN(C)C(=O)c1cc2n(n1)C(C(F)(F)F)CC(c1cccs1)N2
d) O=C(COc1ccccc1F)Nc1ccc(S(=O)(=O)N2CCCC2)cc1
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}