Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a.) N=C(N)c1ccc(OCCCCCOc2ccc(C(=N)N)cc2)cc1
b.) CC(C)(O)c1ccc([C@H](O)CCCN2CCC(C(O)(c3ccccc3)c3ccccc3)CC2)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}
4-[5-(4-carbamimidoylphenoxy)pentoxy]benzenecarboximidamide