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, d, or e without using any other words.
Options:
a CCS(=O)(=O)N(C)[C@H]1c2cc(C#N)ccc2OC(C)(C)[C@@H]1O
b C[C@@](O)(c1ccccc1)[C@H]1C=CC([C@H](c2cc[n+](O)cc2)c2ccc(OC(F)F)c(OC(F)F)c2)=CN1
c NC1=[NH+]C[C@H]2c3ccccc3Cc3ccccc3N12
d N#Cc1ccc(Cn2cncc2C[NH+](CCC[NH3+])[C@@H]2CCN(Cc3cccc(Cl)c3)C2=O)cc1
e CC[C@H](O)c1cn(-c2ccc(F)cc2)c2ccc(Cl)cc12
Answer: a, b, 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}
(1R)-1-[(2R)-5-[(R)-[3,4-bis[bis(fluoranyl)methoxy]phenyl]-(1-oxidanylpyridin-1-ium-4-yl)methyl]-1,2-dihydropyridin-2-yl]-1-phenyl-ethanol