user: Question: Who is the incumbent who was first elected before 2002 from the Maryland 3 district?
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Results']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Maryland 1', 'Wayne Gilchrest', 'Republican', 1990.0, 'Re-elected']
SQL:

assistant: SELECT "Incumbent" FROM "Table" WHERE "First elected" < 2002.0 AND "District" = 'Maryland 3';