Problem: Text: As of 2017, 24 Hour Fitness has over 4 million members and more than 420 clubs in 18 states, with more than 22,000 employees. Its major competitors in the US are Anytime Fitness, Gold's Gym, Aspen Fitness, and LA Fitness.

Question: is anytime fitness the same as 24 hour fitness?
A: no

Problem: Text: The Tokyo Skytree, completed in February 2012, reaches a height of 634 m (2,080 ft), making it the tallest tower, and second-tallest free-standing structure in the world.

Question: is tokyo skytree is the tallest tower in the world?
A: yes

Problem: Text: The Lighthouse of Alexandria, sometimes called the Pharos of Alexandria (/frs/; Ancient Greek: , contemporary Koine Greek pronunciation: (ho pha.ros tes a.lek.sandreas)), was a lighthouse built by the Ptolemaic Kingdom, during the reign Ptolemy II Philadelphus (280--247 BC) which has been estimated to be 100 metres (330 ft) in overall height. One of the Seven Wonders of the Ancient World, for many centuries it was one of the tallest man-made structures in the world. Badly damaged by three earthquakes between AD 956 and 1323, it then became an abandoned ruin. It was the third longest surviving ancient wonder (after the Mausoleum at Halicarnassus and the extant Great Pyramid of Giza), surviving in part until 1480, when the last of its remnant stones were used to build the Citadel of Qaitbay on the site. In 1994, French archaeologists discovered some remains of the lighthouse on the floor of Alexandria's Eastern Harbour. In 2016 the Ministry of State of Antiquities in Egypt had plans to turn submerged ruins of ancient Alexandria, including those of the Pharos, into an underwater museum.

Question: is the lighthouse of alexandria still standing today?
A:
no