Task: Please answer the multiple choice question.
Question: Which molecules are not penetrating the blood brain barrier?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a) Oc1ccc2c3c1OC1C(O)C=CC4C(C2)NCCC341
b) Nc1nc(N)c2nc(-c3ccccc3)c(N)nc2n1
c) Cc1nc2n(c(=O)c1CCN1CCC(c3noc4cc(F)ccc34)CC1)CCCC2O
d) CNC/C=C(/c1ccc(Br)cc1)c1cccnc1
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {penetrate_BBB#not &NULL}{penetrate_BBB__names__adjective}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%penetrate_BBB%}
Answer: {%multiple_choice_result}