Task: Please answer the multiple choice question.
Question: Which molecules are not 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 additional words.
Options:
a. CNC(=O)[C@@]12C[C@@H]1[C@@H](n1cnc3c(NC)nc(C#Cc4ccc(Cl)s4)nc31)[C@H](O)[C@@H]2O
b. CSc1ccc(N2CCC3(CCN(C[C@H](O)c4ccc5c(c4C)COC5=O)CC3)C2)cn1
c. CC(C)(C)c1cc(C(=O)NC[C@@H]2CCN(C(=O)CCCCC(c3ccc(F)cc3)c3ccc(F)cc3)C2)cc(C(C)(C)C)c1
d. CCOC(=O)C1=C(COCCN)NC(C)=C(C(=O)OC)C1c1ccccc1Cl
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}
(1S,2R,3S,4R,5S)-4-[2-[2-(5-chlorothiophen-2-yl)ethynyl]-6-(methylamino)purin-9-yl]-2,3-dihydroxy-N-methylbicyclo[3.1.0]hexane-1-carboxamide