You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "which is taller empire state or sears tower?" whose answer is Sears Tower.
Each document should contain about 30 words, and these documents should contain useful information.

Query: height of empire state building and willis tower
Useful Output:

Doc 1: Built for Sears, Roebuck and Company, the structure, now called Willis Tower, reaches 108 floors and a height of 1,451 feet (442 meters),
Doc 2: The Empire State Building has 102 floors and is 1454 feet tall at the tip. The Sears Tower, now known as the Wills Tower has 108 floors (plus 3
Doc 3: 1973 – Construction is completed. At 1,450 feet, the Sears Tower passes the Empire State Building as the tallest building in the world. 1974 –
Doc 4: If the Willis Tower and the Empire State Building are combined, their total height would be 2,904 feet. This is the sum of the individual
Doc 5: The Sears Tower (now named Willis Tower) Building is 442.1 meters (1,450 ft) tall. The Empire State Building is 381 meters (1,250 ft) tall.