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 other words.
Options:
(a) O=C(NC1CCN(Cc2ccc3c(c2)OCO3)CC1)c1cc(=O)c2ccc(Cl)cc2o1
(b) Cc1cccc(C)c1OC[C@@H](C)[NH3+]
(c) CCC[NH+]1C[C@H](CSC)C[C@@H]2c3cccc4c3C(C=N4)C[C@H]21
(d) CCc1ccc2c(=O)cc(C(=O)NC3CCN(Cc4ccc5c(c4)OCO5)CC3)oc2c1
Answer: a, b, c, d
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__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_blocker%}
Answer: {%multiple_choice_result}