Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a) COc1cc(OC)cc(-c2cc3nc(C)c(CCC(=O)NC(C)CCc4ccco4)c(C)n3n2)c1
b) CCn1c(NN)nc2sc3c(c2c1=O)CCC3
c) CN(C)CCCN1C(=O)c2oc3ccc(F)cc3c(=O)c2C1c1cccnc1
d) CCCCCSc1cc(OC)c(CCNC)cc1OC.O=C(O)/C=C\C(=O)O
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__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_inhib%}
Answer: {%multiple_choice_result}