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, or c without using any additional words.
Options:
a N#Cc1cccc(CCN2CCN(C(=O)Cc3ccc(-n4cnnn4)cc3)CC2)c1
b O=C(Nc1ccc(-c2nnc(NCCCCN3CCC(F)CC3)o2)cc1)c1ccccc1F
c COc1ccc(-c2noc(C3=CC4(CCN(Cc5nc(C)no5)CC4)c4ccccc43)n2)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}
3-[2-[4-[2-[4-(tetrazol-1-yl)phenyl]acetyl]piperazin-1-yl]ethyl]benzonitrile