user: Question: What was the parent magazine of the magazine that was first published on December 16, 2004?
Columns: ['Title', 'Parent magazine', 'Magazine type', 'Frequency', 'First published']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Character Parfait Comic & Puzzle', 'Character Parfait', 'Manga', 'Bimonthly', 'April 27, 2010']
SQL:

assistant: SELECT "Parent magazine" FROM "Table" WHERE "First published" = 'December 16, 2004';