Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest acute oral toxicity rat LD50.
Constraint: You must select all options from a or b without using any other words.
Options:
a. CSC(C)=NOC(=O)N(C)SN(C)C(=O)Oc1ccc(C(C)(C)c2ccc(OC(=O)N(C)SN(C)C(=O)ON=C(C)SC)cc2)cc1
b. COC(=O)C1CCc2cc(C3CCCCC3)ccc21
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}