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, c, or d without using any other words.
Options:
a: O=C(OCc1ccccc1)N1CCC(Cc2nc3ccccc3[nH]2)CC1
b: O=C(O)c1cn(C2CC2)c2cc(N3CCNCC3)c(F)cc2c1=O
c: N#Cc1cccc(CCN2CCN(C(=O)Cc3ccc(-n4cnnn4)cc3)CC2)c1
d: Cc1cc2nc(CC3CCCNC3)n(Cc3ccc(Cl)cc3)c2cc1C
Answer: a, c, d
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