Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a C[N@@+]1(CC2CC2)CC[C@]23c4c5ccc(O)c4O[C@H]2C(=O)CC[C@@]3(O)[C@H]1C5
b Cc1cccc(NC(=O)N[C@@H]2N=C(c3ccccc3)c3ccccc3N(C)C2=O)c1
c Fc1ccc2[nH]c(-c3ccccc3)c([C@@H]3C[NH2+]CC[C@@H]3F)c2c1
d CS(=O)(=O)Nc1ccc2c(c1)C(=O)CC1(CCN([C@@H]3CCc4cc(C#N)ccc4C3)CC1)O2
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}
(3S,4R,4aS,7aR,12bS)-3-(cyclopropylmethyl)-4a,9-dihydroxy-3-methyl-2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-3-ium-7-one