user: Question: What is the completed date of 蓬?
Columns: ['Kanji', 'Name', 'Builder', 'Laid down', 'Launched', 'Completed']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['樅', 'Momi', 'Yokosuka Naval Arsenal , Japan', '23 January 1918', '10 June 1919', '27 December 1919']
SQL:

assistant: SELECT "Completed" FROM "Table" WHERE "Kanji" = '蓬';