[{"from": "human", "value": "Given SMILES, write its weight-averaged molecular weight at room temperature and atmospheric pressure. ->  CC(S1)=CC(C1=C2C3=CC=C(CC(CCCC)CC)S3)=C(C4=CC=C(CC(CCCC)CC)S4)C5=C2C=C(S5)C(C6=NSN=C67)=C(F)C=C7C8=CC9=C(C%10=CC(CCCCCC)=C(CC(CCCC)CC)S%10)C%11=C(C(C%12=CC(CCCCCC)=C(CC(CC)CCCC)S%12)=C9S8)C=C(C%13=CC(F)=C(C)C%14=NSN=C%14%13)S%11\n"}, {"from": "gpt", "value": " 5.15\n"}]