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 or b without using any other words.
Options:
(a) N#Cc1ccc2ccc(=O)n(CCN3CC[C@H](NCc4ccc5c(n4)NC(=O)CO5)[C@@H](O)C3)c2c1
(b) CCN(CC)Cc1ccc2c(c1)CC[C@H](N1CCN(CCc3ccc(Cl)cc3)CC1=O)C2
Answer: b
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-[2-(4-chlorophenyl)ethyl]-1-[(2S)-6-(diethylaminomethyl)-1,2,3,4-tetrahydronaphthalen-2-yl]piperazin-2-one