Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest rat LD50 (oral exposure).
Constraint: You must select all options from a or b without using any additional words.
Options:
[a] O=C1C(O)N=C(c2ccccc2F)c2cc(Cl)ccc2N1CCO
[b] CC(Oc1ccc(Oc2nc3ccc(Cl)cc3o2)cc1)C(=O)O
Answer: a
Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest {acute_toxicity__names__noun}.
Constraint: You must select all options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}