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: CCOc1cc(Nc2nc3c(cc2F)ncn3[C@@H](CO)c2ccc(F)cn2)n[nH]1
b: CCc1cc(Oc2cc(Cl)ccc2CNC)ccc1Cl
c: CCNCCN1CCCc2cc(NC(=N)c3cccs3)ccc21
d: CC(C)C(=O)N1CCO[C@@H](c2nc(-c3ccc(C(=O)Nc4cc(C(F)(F)F)ccn4)cc3F)c3c(N)nccn23)C1
Answer: b
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-[4-chloro-2-(4-chloro-3-ethylphenoxy)phenyl]-N-methylmethanamine