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] COc1ccc2c(c1)CCC1(CCN(CCc3ccc(F)cc3F)CC1)O2
[b] CCC(NC(=O)c1c([S+](C)[O-])c(-c2ccccc2)nc2ccccc12)c1ccccc1
[c] CC12CCC(C(NC(=O)[C@@H](CC3CCCCC3)NC(=O)N[C@@H](CCCCN)C(=O)O)C1)C2(C)C
[d] Cc1ccc2c(N3CCN(CCc4cccc5c4CCC(=O)N5C)CC3)cccc2n1
Answer: a, d
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}
1'-[2-(2,4-difluorophenyl)ethyl]-6-methoxyspiro[3,4-dihydrochromene-2,4'-piperidine]