In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

[EX Q]: Passage: During Leopold's illness performances were impossible, so Wolfgang turned to composition. According to the writer and musician Jane Glover, Wolfgang was inspired to write symphonies after meeting Johann Christian Bach. It is not clear when this meeting occurred, or when Wolfgang first heard J. C. Bach's symphonies, although he had played the older composer's harpsichord works in his May 1764 royal recital. Wolfgang soon completed his Symphony No. 1 in E flat, K. 16, and started his No. 4 in D major, K. 19 (which Zaslaw concludes was more likely composed, or at least completed, in The Hague). The D major symphony has, in Hildesheimer's words, "an originality of melody and modulation which goes beyond the routine methods of his [grown-up] contemporaries". These are Wolfgang's first orchestral writings, although Zaslaw hypothesises a theoretical "Symphony No. 0" from sketches in Wolfgang's musical notebook. Three lost symphonies, identified in the Köchel catalogue of Mozart's works only by their incipits (first few bars of music), may also have originated from the London period. Other works composed by Wolfgang in London include several instrumental sonatas, the jewel of which, according to Hildesheimer, is the C major sonata for piano, four hands, K. 19d. A set of violin sonatas, with extra flute and cello parts, was dedicated to Queen Charlotte at her request, and presented to her with an appropriate inscription in January 1765. Wolfgang also wrote his first vocal works, the motet "God is our Refuge", K. 20, and the tenor aria Va, dal furor portata, K. 21. 
Question: What was the last name of the older composer who Wolfgang played their harpsichord works in his May 1764 royal recital?
[EX A]: Bach.

[EX Q]: Passage: The hartebeest (; Alcelaphus buselaphus), also known as kongoni, is an African antelope. Eight subspecies have been described, including two sometimes considered to be independent species. A large antelope, the hartebeest stands just over 1 m (3.3 ft) at the shoulder, and has a typical head-and-body length of 200 to 250 cm (79 to 98 in). The weight ranges from 100 to 200 kg (220 to 440 lb). It has a particularly elongated forehead and oddly shaped horns, short neck, and pointed ears. Its legs, which often have black markings, are unusually long. The coat is generally short and shiny. Coat colour varies by the subspecies, from the sandy brown of the western hartebeest to the chocolate brown of the Swayne's hartebeest. Both sexes of all subspecies have horns, with those of females being more slender. Horns can reach lengths of 45–70 cm (18–28 in). Apart from its long face, the large chest and the sharply sloping back differentiate the hartebeest from other antelopes.
Gregarious animals, hartebeest form herds of 20 to 300 individuals. They are very alert and non-aggressive. They are primarily grazers, with their diets consisting mainly of grasses. Mating in hartebeest takes place throughout the year with one or two peaks, and depends upon the subspecies and local factors. Both males and females reach sexual maturity at one to two years of age. Gestation is eight to nine months long, after which a single calf is born. Births usually peak in the dry season. The lifespan is 12 to 15 years. 
Question: What is the common English name of the animal that has eight subspecies?
[EX A]: African antelope.

[EX Q]: Passage: Tragic Kingdom is the third studio album by American rock band No Doubt. It was released on October 10, 1995, by Trauma Records and Interscope Records. It was the final album to feature original keyboardist Eric Stefani, who left the band in 1994. The album was produced by Matthew Wilder and recorded in 11 studios in the Greater Los Angeles Area between March 1993 and October 1995. Between 1995 and 1998, seven singles were released from it, including "Just a Girl", which charted on the Billboard Hot 100 and the UK Singles Chart; and "Don't Speak", which topped the Billboard Hot 100 Airplay and reached the top five of many international charts.
The album received mostly positive reviews from music critics. At the 39th Annual Grammy Awards, No Doubt earned nominations for Best New Artist and Best Rock Album. It has sold over 16 million copies worldwide, and was certified diamond by the Recording Industry Association of America (RIAA) in the United States and Canada, platinum in the United Kingdom, and triple platinum in Australia. Tragic Kingdom helped to initiate the ska revival of the 1990s, persuading record labels to sign more ska bands and helping them to attract more mainstream attention. The album was ranked number 441 on Rolling Stone magazine's list of the 500 greatest albums of all time.
No Doubt embarked on a tour to promote the album. It was designed by Project X and lasted two and a half years. An early 1997 performance at the Arrowhead Pond of Anaheim was filmed and released as Live in the Tragic Kingdom on VHS and later DVD. 
Question: What were the names of the two singles out of seven that were released that charted on the Billboard Hot 100?
[EX A]:
Just a Girl.