user: Question: in 1953, which of the institutions joined?
Columns: ['Institution', 'Location', 'Nickname', 'Founded', 'Type', 'Enrollment', 'Joined']
Types: ['text', 'text', 'text', 'real', 'text', 'real', 'text']
Sample row: ['Adrian College', 'Adrian, Michigan', 'Bulldogs', 1859.0, 'Private/Methodist', 1040.0, '1908 2']
SQL:

assistant: SELECT "Institution" FROM "Table" WHERE "Joined" = '1953';