user: Question: How tall is the Florida Life Building, completed before 1990?
Columns: ['Years tallest', 'Name', 'Height ft / m', 'Floors', 'Year completed']
Types: ['text', 'text', 'text', 'real', 'real']
Sample row: ['1902–1909', 'Dyal-Upchurch Building', '-foot (m)', 6.0, 1902.0]
SQL:

assistant: SELECT "Height ft / m" FROM "Table" WHERE "Year completed" < 1990.0 AND "Name" = 'Florida Life Building';