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. CC1CCC(NC(=O)c2cnccn2)CC1
b. CSc1ccc2c(c1)N(CCC1CCCCN1C)c1ccccc1S2.Cl
c. Cc1cc(C)c(C)c(S(=O)(=O)NCC(=O)Nc2sc3c(c2C(N)=O)CCCC3)c1C
d. O=C1NC(=O)C(CCc2ccncc2)(C2CCCCC2)C(=O)N1
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}