user: Question: Has Episode 1B-16 (42) been preserved?
Columns: ['Episode', 'Title', 'Writer(s)', 'Preservation', 'Original airdate']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1B-01 (27)', '"The Hypnotized Audience"', '—', 'Preserved', 'March27,1938']
SQL:

assistant: SELECT "Preservation" FROM "Table" WHERE "Episode" = '1B-16 (42)';