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: CNc1nc(NCCCN(C)C)c2sc(-c3ccc(N4CCOCC4)cc3)cc2n1
b: CCCNC(C)C(=O)Nc1c(C)csc1C(=O)OC
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-N-[3-(dimethylamino)propyl]-2-N-methyl-6-(4-morpholin-4-ylphenyl)thieno[3,2-d]pyrimidine-2,4-diamine