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) CC(=O)NCCc1ccccc1-c1ccc([C@H]2CNCC[C@@]23OCc2cc(F)c(F)cc23)c(C)c1
(b) O=c1[nH]ccc2nc(-c3ccc(CN4CCC(c5nc(-c6ncccn6)n[nH]5)CC4)cc3)c(-c3ccccc3)cc12
(c) COc1ccc(-c2ccc(C#Cc3cccc(C#Cc4ccc(-c5ccc(OC)cc5)cc4)[n+]3C)cc2)cc1
(d) N#Cc1ccc(COC[C@H]2O[C@@H](n3c(NCc4ccc(Cl)c(Cl)c4)nc4c(N)ncnc43)[C@H](O)[C@@H]2O)cc1
Answer: a, c
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}
2,6-bis[2-[4-(4-methoxyphenyl)phenyl]ethynyl]-1-methylpyridin-1-ium