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 or b without using any additional words.
Options:
a) N#Cc1ccc(N2N=C(c3ccc4[nH]c(=O)oc4c3)CC2c2ccc(F)cc2)cc1
b) COc1ccc([C@@H](C)N[C@@H]2CC[C@@H](C(=O)N3CCC(c4ccccc4)(N4CCCNC4=O)CC3)C(C)(C)C2)cc1
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}
4-[3-(4-fluorophenyl)-5-(2-oxo-3H-1,3-benzoxazol-6-yl)-3,4-dihydropyrazol-2-yl]benzonitrile