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, b, c, or d without using any additional words.
Options:
a. COc1ccc2nccc(NC(=O)C3CCC(NCc4cc5c(cn4)OCCO5)CC3)c2n1
b. CCCOc1ccc(-c2cc(Cn3cc4nc(-c5cccc(F)c5F)nc-4cn3)on2)c(C(F)(F)F)c1
c. O=S1(=O)CCC(Oc2ccc3c(c2)CCC2(CCN(C4CCC4)CC2)O3)CC1
d. CN(C)C(=N)c1ccc(C(=O)Nc2ccc(OCC(=O)O)cc2C(=O)Nc2ccc(Cl)cn2)cc1
Answer: c
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-(1'-cyclobutylspiro[3,4-dihydrochromene-2,4'-piperidine]-6-yl)oxythiane 1,1-dioxide