user: Question: What political party for Burton E. Sweet?
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Iowa 1', 'Charles A. Kennedy', 'Republican', 1906.0, 'Retired Republican hold', 'William F. Kopp (R) 64.5% E. W. McManus (D) 35.5%']
SQL:

assistant: SELECT "Party" FROM "Table" WHERE "Incumbent" = 'Burton E. Sweet';