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, d, or e without using any other words.
Options:
[a] CN1CCN(c2ncnc3c2nc(-c2ccccc2Cl)n3-c2ccc(Cl)cc2)CC1
[b] CC(C)(CCCN1CCCC(c2ccccc2)C1)S(=O)(=O)c1ccccc1
[c] Fc1cccc2[nH]c(-c3ccccc3)c([C@@H]3CNC[C@@H](F)C3)c12
[d] CNCc1ccc(-c2[nH]c3cc(F)cc4c3c2CCNC4=O)cc1
[e] CNc1noc2c(-c3ccc4c(N5CCOCC5C)nncc4c3)c(C)ccc12
Answer: a, b, 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}
8-(2-chlorophenyl)-9-(4-chlorophenyl)-6-(4-methylpiperazin-1-yl)purine