user: Question: What city had a score of 20 in Aigburth after 1907?
Columns: ['Score', 'Opposition', 'Venue', 'City', 'Year']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [20.0, 'Essex', 'County Ground', 'Chelmsford', 2013.0]
SQL:

assistant: SELECT "City" FROM "Table" WHERE "Year" > 1907.0 AND "Score" > 20.0 AND "Venue" = 'Aigburth';