Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_95 (years_as_tallest VARCHAR, floors VARCHAR, street_address VARCHAR)
### Question:
During what years did the tallest building, located at 211 Union Street, have less than 31 floors?
### Answer:
SELECT years_as_tallest FROM table_name_95 WHERE floors < 31 AND street_address = "211 union street"