user: Question: What city has Riverside Ground as the venue, with a year prior to 1998?
Columns: ['Score', 'Opposition', 'Venue', 'City', 'Year']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['423 runs', 'Somerset', 'Aigurth', 'Liverpool', 1911.0]
SQL:

assistant: SELECT "City" FROM "Table" WHERE "Venue" = 'Riverside Ground' AND "Year" < 1998.0;