user: Question: In what district is the incumbent Lawrence J. Smith? 
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Florida 1', 'Earl Dewitt Hutto', 'Democratic', 1978.0, 'Re-elected', 'Earl Dewitt Hutto (D) Unopposed']
SQL:

assistant: SELECT "District" FROM "Table" WHERE "Incumbent" = 'Lawrence J. Smith';