[{"from": "human", "value": "Given SMILES, write its poly dispersity index at room temperature and atmospheric pressure. ->  CC1=C(F)C(F)=C(C2=CC(S3)=C(S2)C4=C3C5=CC(C6(C7=CC=C(OCCCCCCCC)C=C7)C8=CC=C(OCCCCCCCC)C=C8)=C(C=C5C4(C9=CC=C(OCCCCCCCC)C=C9)C%10=CC=C(OCCCCCCCC)C=C%10)C%11=C6C(S%12)=C(S%11)C=C%12C)C%13=NSN=C1%13\n"}, {"from": "gpt", "value": " 1.2\n"}]