Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a. COc1cc(CN2CCN(CCCCCC(c3ccc(F)cc3)c3ccc(F)cc3)CC2)cc(OC)c1OC
b. COc1ccc2ncc(=O)n(CCN3CC[C@@H](NCc4ccc5c(n4)NC(=O)CO5)[C@@H](F)C3)c2c1
c. CNS(=O)(=O)c1cc(C(=O)N2CCC(CCN3[C@@H]4CC[C@@H]3CC(n3c(C)nc5ccccc53)C4)(c3cccc(F)c3)CC2)c(Cl)cc1F
d. CCCCN1CCCC[C@@H]1C(=O)Nc1c(C)cccc1C.Cl
Answer: a
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}
1-[6,6-bis(4-fluorophenyl)hexyl]-4-[(3,4,5-trimethoxyphenyl)methyl]piperazine