user: ### NOW ANSWER:
Question: What's the diameter when longitude is 105.0e before 2003?
Columns: ['Name', 'Latitude', 'Longitude', 'Diameter (km)', 'Year named']
Types: ['text', 'text', 'text', 'real', 'real']
Sample row: ['Abe Mango Dorsa', '47.0N', '212.0E', 800.0, 1997.0]
SQL:

assistant: SELECT SUM("Diameter (km)") FROM "Table" WHERE "Longitude" = '105.0e' AND "Year named" < 2003.0;