Task: Please answer the multiple choice question.
Question: Which molecules are absorbed from the human gastrointestinal system?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=C1CC2(CCCC2)CC(=O)N1CCCCN1CCN(c2ncccn2)CC1
(b) CC(=O)N[C@H]1[C@@H]([C@@H](O)[C@H](O)CO)OC(C(=O)O)=C[C@H]1NC(=N)N
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {absorption_HIA_Hou#not &NULL}{absorption_HIA_Hou__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%absorption_HIA_Hou%}
Answer: {%multiple_choice_result}