user: Question: What is the symbol of the element with an empirical t of 190 and a calculated value of 135?
Columns: ['number', 'symbol', 'name', 'empirical †', 'Calculated', 'van der Waals', 'Covalent (single bond)', 'Covalent (triple bond)']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'H', 'hydrogen', '25', '53', '120', '38', 'no data']
SQL:

assistant: SELECT "symbol" FROM "Table" WHERE "empirical †" = '190' AND "Calculated" = '135';