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) Nc1nc(N2CCNCC2)c2ccc(-c3ccco3)cc2n1
b) O=C(c1ccc(F)cc1F)N1CCN(c2ccc(OC3CCN(C4CCC4)CC3)cc2)C(=O)C1
c) C[C@]1(C(=O)O)CC[C@@](C)(c2nc(-c3ccc(C(=O)Nc4cc(C(F)(F)F)ccn4)cc3)c3c(N)nccn23)C1
d) CN1CC2CC1CN2c1ncc(-c2ccccc2)cn1
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}
7-(furan-2-yl)-4-piperazin-1-ylquinazolin-2-amine