[{"from": "human", "value": "Write poly dispersity index of given SMILES at room temperature and atmospheric pressure. ->  CC1=C(C[C@@H](CCCC)CC)C=C(S1)C(C2=NSN=C23)=NC=C3C4=CC(C[C@@H](CC)CCCC)=C(S4)C5=CC(C(N=C(CCCCCCCC)C(CCCCCCCC)=N6)=C6C7=C8SC(C)=C7)=C8S5\n"}, {"from": "gpt", "value": " 2.27\n"}]