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_78 (name VARCHAR, city VARCHAR, years_as_tallest VARCHAR)
### Question:
What is the name of the building that was the tallest from 1990–1997 in Frankfurt?
### Answer:
SELECT name FROM table_name_78 WHERE city = "frankfurt" AND years_as_tallest = "1990–1997"