Please answer this: Extract the answer to the question from the following context. Question: How did it alter TV? Context: The show's massive success in the mid-2000s and early 2010s spawned a number of imitating singing-competition shows, such as Rock Star, Nashville Star, The Voice, Rising Star, The Sing-Off, and The X Factor. Its format also served as a blueprint for non-singing TV shows such as Dancing with the Stars and So You Think You Can Dance, most of which contribute to the current highly competitive reality TV landscape on American television.
++++++++
Answer: Its format also served as a blueprint for non-singing TV shows


Problem: Extract the answer to the question from the following context. Question: Which of Emperor Wu of Liang or Sui Dynasty came first? Context: A number of sculptural ensembles of that era, erected at the tombs of royals and other dignitaries, have survived (in various degrees of preservation) in Nanjing's northeastern and eastern suburbs, primarily in Qixia and Jiangning District. Possibly the best preserved of them is the ensemble of the Tomb of Xiao Xiu (475–518), a brother of Emperor Wu of Liang. The period of division ended when the Sui Dynasty reunified China and almost destroyed the entire city, turning it into a small town.

A: Emperor Wu of Liang


Problem: Given the question: Extract the answer to the question from the following context. Question: What's different in the city and in the countryside? Context: Most British pubs still have decorated signs hanging over their doors, and these retain their original function of enabling the identification of the pub. Today's pub signs almost always bear the name of the pub, both in words and in pictorial representation. The more remote country pubs often have stand-alone signs directing potential customers to their door.
++++++++++++++++++++++++++++++++
The answer is:
The more remote country pubs often have stand-alone signs directing potential customers to their door


input question: Extract the answer to the question from the following context. Question: How many stations are below ground level? Context: The Delhi Metro is a rapid transit system serving New Delhi, Delhi, Gurgaon, Faridabad, Noida, and Ghaziabad in the National Capital Region of India. Delhi Metro is the world's 12th largest metro system in terms of length. Delhi Metro was India's first modern public transportation system, which had revolutionised travel by providing a fast, reliable, safe, and comfortable means of transport. The network consists of six lines with a total length of 189.63 kilometres (117.83 miles) with 142 stations, of which 35 are underground, five are at-grade, and the remainder are elevated. All stations have escalators, elevators, and tactile tiles to guide the visually impaired from station entrances to trains. It has a combination of elevated, at-grade, and underground lines, and uses both broad gauge and standard gauge rolling stock. Four types of rolling stock are used: Mitsubishi-ROTEM Broad gauge, Bombardier MOVIA, Mitsubishi-ROTEM Standard gauge, and CAF Beasain Standard gauge.???
output answer: 35


Extract the answer to the question from the following context. Question: Who visited Prince Philip 45 years after he went to St. Helena? Context: One commentator has observed that, notwithstanding the high unemployment resulting from the loss of full passports during 1981–2002, the level of loyalty to the British monarchy by the St Helena population is probably not exceeded in any other part of the world. King George VI is the only reigning monarch to have visited the island. This was in 1947 when the King, accompanied by Queen Elizabeth (later the Queen Mother), Princess Elizabeth (later Queen Elizabeth II) and Princess Margaret were travelling to South Africa. Prince Philip arrived at St Helena in 1957 and then his son Prince Andrew visited as a member of the armed forces in 1984 and his sister the Princess Royal arrived in 2002.
----
Answer: his sister


Q: Extract the answer to the question from the following context. Question: What is the role of Compass-M1 for the Compass navigation system? Context: Compass-M1 is an experimental satellite launched for signal testing and validation and for the frequency filing on 14 April 2007. The role of Compass-M1 for Compass is similar to the role of the GIOVE satellites for the Galileo system. The orbit of Compass-M1 is nearly circular, has an altitude of 21,150 km and an inclination of 55.5 degrees.
A:
signal testing and validation