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: After the Southwest became part of the U.S., explorers continued to look for good east–west routes along the 35th parallel. In 1853, a crew led by U.S. Army Lieutenant Amiel Whipple surveyed along a sandy wash in the northern part of the Petrified Forest. So impressed was Whipple by the petrified wood along the banks of the arroyo that he named it Lithodendron Creek (Stone Tree Creek). Geologist Jules Marcou, a member of the Whipple expedition, observed that the petrified trees were from the Triassic.A slightly later route along the parallel was a wagon road, built between 1857 and 1860, that involved experimental use of camels as transport. In the late 19th century, settlers and private stagecoach companies followed similar east–west routes. Homesteaders who stayed in the area developed cattle ranches on the grasslands, and cattle grazed in the Petrified Forest until the mid-20th century.Also close to the 35th parallel was the Atlantic and Pacific Railroad. Its opening in the early 1880s led to the founding of towns like Holbrook and Adamana. Visitors could stop at the Adamana train station, book a hotel room, and take a tour of what was then called the Chalcedony Forest. Over the years, the line changed hands, becoming the Atchison, Topeka and Santa Fe Railway, and then the BNSF. More than 60 BNSF trains, mostly carrying freight, pass through the park every day. U.S. Route 66, a former transcontinental auto highway developed in 1926 from part of the National Old Trails Road, ran parallel to the railroad tracks until it was decommissioned in 1985. The park has preserved within its boundaries a small grassy section of the road. Interstate 40, which crosses the park, replaced the older highway. 
Question: What is the name of the place that 60 BNSF trains pass through everyday?
[EX A]: Petrified Forest.

[EX Q]: Passage: Colour lies at the heart of Messiaen's music. He believed that terms such as "tonal", "modal" and "serial" are misleading analytical conveniences. For him there were no modal, tonal or serial compositions, only music with or without colour. He said that Claudio Monteverdi, Mozart, Chopin, Richard Wagner, Mussorgsky and Stravinsky all wrote strongly coloured music.In some of Messiaen's scores, he notated the colours in the music (notably in Couleurs de la cité céleste and Des canyons aux étoiles...)—the purpose being to aid the conductor in interpretation rather than to specify which colours the listener should experience. The importance of colour is linked to Messiaen's synaesthesia, which he said caused him to experience colours when he heard or imagined music (he said that he did not perceive the colours visually). In his multi-volume music theory treatise Traité de rythme, de couleur, et d'ornithologie ("Treatise of Rhythm, Colour and Birdsong"), Messiaen wrote descriptions of the colours of certain chords. His descriptions range from the simple ("gold and brown") to the highly detailed ("blue-violet rocks, speckled with little grey cubes, cobalt blue, deep Prussian blue, highlighted by a bit of violet-purple, gold, red, ruby, and stars of mauve, black and white. Blue-violet is dominant").When asked what Messiaen's main influence had been on composers, George Benjamin said, "I think the sheer ... colour has been so influential, ... rather than being a decorative element, [Messiaen showed that colour] could be a structural, a fundamental element, ... the fundamental material of the music itself.". 
Question: What is the name of the person who said Monteverdi, Mozart, Chopin, Wagner, Mussorgsky, and Stravinsky all wrote strongly coloured music?
[EX A]: Messiaen.

[EX Q]: Passage: While Perry's music incorporates pop, rock, and disco, Katy Hudson contains gospel. Her subsequent releases, One of the Boys and Teenage Dream, involve themes of sex and love. One of the Boys is a pop rock record, while Teenage Dream features disco influences. Perry's fourth album, Prism, is significantly influenced by dance and pop music. Lyrically, the album addresses relationships, self-reflection, and everyday life. The singer's fifth studio effort Witness is an electropop album that she described as a "360-degree liberation" record, with themes including political liberation, sexual liberation, and liberation from negativity. Many of her songs, particularly on Teenage Dream, reflect on love between teenagers; W described the album's sexual innuendos as "irresistible hook-laden melodies". Self-empowerment is a common theme in Perry's music.Perry describes herself as a "singer-songwriter masquerading as a pop star" and maintains that honest songwriting is very important to her. She told Marie Claire: "I feel like my secret magic trick that separates me from a lot of my peers is the bravery to be vulnerable and truthful and honest. I think you become more relatable when you're vulnerable." Kristen Wiig commented that "as easy, breezy, and infectious as Perry's songs can be, beneath the surface lurks a sea of mixed emotions, jumbled motives, and contradictory impulses complicated enough to fill a Carole King record." According to Greg Kot of the Chicago Tribune, "being taken seriously may be Perry's greatest challenge yet." The New York Times labeled her "the most potent pop star of the day – her hits are relatable with just a hint of experimentation". Randall Roberts of the Los Angeles Times criticized her use of idioms and metaphors in her lyrics and for frequent "clichés". Throughout her career, Perry has co-written songs recorded by other artists, including Selena Gomez & the Scene, Jessie James, Kelly Clarkson, Lesley Roy, Britney Spears, Iggy Azalea, Ariana Grande, and Nicki Minaj. 
Question: What was the name of Perry's fifth album?
[EX A]:
Witness.