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(Nc1ccncc1)c1sc2ccccc2c1Cl
b. CC(C)NCCCOc1ccc(Cl)cc1Br.O=C(O)C(=O)O
c. COc1ccc(/C=C/C(=O)Oc2ccc(/C=N/NC(=O)c3ccccc3)cc2)cc1OC
d. COc1cccc(NC(=O)CN2CCN(c3nc(-c4cccc(OC)c4)cs3)CC2)c1
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}