Input: Mosaic
In the 5th-century Ravenna, the capital of the Western Roman Empire, became the center of late Roman mosaic art. The Mausoleum of Galla Placidia was decorated with mosaics of high artistic quality in 425–430. The vaults of the small, cross-shaped structure are clad with mosaics on blue background. The central motif above the crossing is a golden cross in the middle of the starry sky. Another great building established by Galla Placidia was the church of San Giovanni Evangelista. She erected it in fulfillment of a vow that she made having escaped from a deadly storm in 425 on the sea voyage from Constantinople to Ravenna. The mosaics depicted the storm, portraits of members of the western and eastern imperial family and the bishop of Ravenna, Peter Chrysologus. They are known only from Renaissance sources because almost all were destroyed in 1747.

What years was the Mausoleum of Galla Placidia decorated with mosaics?
Output: 425–430

Input: Compact disc
Meanwhile, with the advent and popularity of Internet-based distribution of files in lossily-compressed audio formats such as MP3, sales of CDs began to decline in the 2000s. For example, between 2000 - 2008, despite overall growth in music sales and one anomalous year of increase, major-label CD sales declined overall by 20%, although independent and DIY music sales may be tracking better according to figures released 30 March 2009, and CDs still continue to sell greatly. As of 2012, CDs and DVDs made up only 34 percent of music sales in the United States. In Japan, however, over 80 percent of music was bought on CDs and other physical formats as of 2015.

When did CD sales experience their original decline?
Output: 2000s

Input: Mexico City
In response to the demands, in 1987 the Federal District received a greater degree of autonomy, with the elaboration the first Statute of Government (Estatuto de Gobierno), and the creation of an Assembly of Representatives.[citation needed] In the 1990s, this autonomy was further expanded and, starting from 1997, residents can directly elect the head of government of the Federal District and the representatives of a unicameral Legislative Assembly (which succeeded the previous Assembly) by popular vote.

What gave the Federal District more autonomy? 
Output: first Statute of Government

Input: Steven Spielberg
According to Forbes' Most Influential Celebrities 2014 list, Spielberg was listed as the most influential celebrity in America. The annual list is conducted by E-Poll Market Research and it gave more than 6,600 celebrities on 46 different personality attributes a score representing "how that person is perceived as influencing the public, their peers, or both." Spielberg received a score of 47, meaning 47% of the US believes he is influential. Gerry Philpott, president of E-Poll Market Research, supported Spielberg's score by stating, "If anyone doubts that Steven Spielberg has greatly influenced the public, think about how many will think for a second before going into the water this summer."

How much of the US believes Spielberg is influential?
Output:
47%