Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] O=c1ccc2ccc(F)c3c2n1C[C@H]3CN1CCC(NCc2cc3c(nn2)OCCO3)CC1
[b] N#CC1(NC(=O)[C@@H]2CCCC[C@H]2C(=O)N2CCN(c3ccc(F)cc3)CC2)CC1
[c] COC(=O)N1CCC(CN2CC[C@H](NC(=O)c3cc(Cl)c(N)cc3OC)[C@H](OC)C2)CC1
[d] COCCN1CCC[C@@H]1Cn1nc(Cc2ccc(Cl)cc2)c2cccnc2c1=O
Answer: 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}
5-[(4-chlorophenyl)methyl]-7-[[(2R)-1-(2-methoxyethyl)pyrrolidin-2-yl]methyl]pyrido[2,3-d]pyridazin-8-one