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, or c without using any additional words.
Options:
a: COc1ccc(NC(=O)NCc2cccnc2)c(OC)c1
b: CCN(CC)CCNC(=O)CCc1c(C)nc2c(c(C)nn2-c2ccc(C)cc2)c1C
c: Cc1ccc(CNC(=O)c2ccc3c(c2)NC(=O)C(N2CCOCC2)S3)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}