Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. O=C(O)CCNC1CC[C@]2(Cc3ccccc3Cc3ccccc32)C1
b. CCOC(=O)C1=C(CN2CCOCC2)NC(c2nc(CC(=O)OC)cs2)=NC1c1ccc(F)cc1Br
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}
3-[[(3S)-spiro[cyclopentane-3,9'-tricyclo[9.4.0.03,8]pentadeca-1(15),3,5,7,11,13-hexaene]-1-yl]amino]propanoicacid