Task: Please answer the multiple choice question.
Question: Which molecules are penetrating the blood brain barrier to reach the brain?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) O=C(O)/C=C\C(=O)O.c1csc(Cc2ccccc2OCC2CNCCO2)c1
b) O=c1[nH]oc2c1CCNC2
c) COc1ccc2c(c1)/C(=C/CCN(C)C)c1ccccc1O2
Answer: a, b, c
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}