Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) CC1c2nc3ccccc3n2C(CC(=O)NCCCN2CCOCC2)C(=O)N1Cc1ccccc1
(b) CCOc1ccc2c(c1)C(N(CCN1CCOCC1)C(=O)Nc1ccc(OC)cc1OC)CC(C)(C)O2
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}