[{"from": "human", "value": "Given SMILES, write its poly dispersity index at room temperature and atmospheric pressure. ->  CC1=CC2=C(C(OCC(CC)CCCC)=C(C=C(C3=CC=C(N(C4=CC=C(C)C=C4)C5=CC=C(C6=CC=C(C7=C8C(C(N7CC(CCCC)CC)=O)=C(C9=CC=C(C%10=CC=C(CCCCCCCC)S%10)S9)N(CC(CC)CCCC)C8=O)S6)C=C5)C=C3)S%11)C%11=C2OCC(CC)CCCC)S1\n"}, {"from": "gpt", "value": " 1.3\n"}]