Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a OC(c1cccnc1)(c1cccnc1)C(c1ccccc1)N1CCNCC1
b O=C(c1ccc(F)cc1)N1CCN(c2ccc(OC3CCN(C4CCCC4)CC3)cc2)C(=O)C1.O=CO
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}
2-phenyl-2-piperazin-1-yl-1,1-dipyridin-3-ylethanol