Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

[EX Q]: The Willis Tower , built as and still commonly referred to as the Sears Tower , is a 110 - story , 1,450 - foot ( 442.1 m ) skyscraper in Chicago , Illinois , United States . At completion in 1973 , it surpassed the World Trade Center towers in New York to become the tallest building in the world , a title it held for nearly 25 years and remained the tallest building in the Western Hemisphere until 2014 and the completion of a new building at the World Trade Center site . The building is considered a seminal achievement for its architect Fazlur Rahman Khan . The Willis Tower is the second - tallest building in the United States and the Western hemisphere -- and the 16th - tallest in the world . More than one million people visit its observation deck each year , making it one of Chicago 's most popular tourist destinations . The structure was renamed in 2009 by the Willis Group as part of its lease on a portion of the tower 's space .
[EX A]: Willis Tower

[EX Q]: The Teenage Mutant Ninja Turtles ( often shortened to TMNT or Ninja Turtles ) are four fictional teenaged anthropomorphic turtles named after Italian artists of the Renaissance . They were trained by their anthropomorphic rat sensei in the art of ninjutsu . From their home in the sewers of New York City , they battle petty criminals , evil overlords , mutated creatures , and alien invaders while attempting to remain hidden from society . They were created by Kevin Eastman and Peter Laird .
[EX A]: Teenage Mutant Ninja Turtles

[EX Q]: The Grand Canyon Skywalk is a horseshoe - shaped cantilever bridge with a glass walkway in Arizona near the Colorado River on the edge of a side canyon in the Grand Canyon West area of the main canyon . USGS topographic maps show the elevation at the Skywalk 's location as 4,770 ft ( 1,450 m ) and the elevation of the Colorado River in the base of the canyon as 1,160 ft ( 350 m ) , and they show that the height of the precisely vertical drop directly under the skywalk is between 500 ft ( 150 m ) and 800 ft ( 240 m ) .
[EX A]:
Grand Canyon Skywalk