user: input: In 1947, Heyerdahl and five fellow adventurers sailed from Peru to the Tuamotu Islands, French Polynesia in a pae-pae raft that they had constructed from balsa wood and other native materials, christened the Kon-Tiki. The Kon-Tiki expedition was inspired by old reports and drawings made by the Spanish Conquistadors of Inca rafts, and by native legends and archaeological evidence suggesting contact between South America and Polynesia. The Kon-Tiki smashed into the reef at Raroia in the Tuamotus on August 7, 1947, after a 101-day, 4,300-nautical-mile (5,000-mile or 8,000 km) journey across the Pacific Ocean. Heyerdahl had nearly drowned at least twice in childhood and did not take easily to water; he said later that there were times in each of his raft voyages when he feared for his life.  Kon-Tiki demonstrated that it was possible for a primitive raft to sail the Pacific with relative ease and safety, especially to the west (with the trade winds). The raft proved to be highly manoeuvrable, and fish congregated between the nine balsa logs in such numbers that ancient sailors could have possibly relied on fish for hydration in the absence of other sources of fresh water. Other rafts have repeated the voyage, inspired by Kon-Tiki. Heyerdahl's book about The Kon-Tiki Expedition: By Raft Across the South Seas has been translated into 70 languages. The documentary film of the expedition entitled Kon-Tiki won an Academy Award in 1951. A dramatised version was released in 2012, also called Kon-Tiki, and was nominated for both the Best Foreign Language Oscar at the 85th Academy Awards and a Golden Globe Award for Best Foreign Language Film at the 70th Golden Globe Awards. It was the first time that a Norwegian film was nominated for both an Oscar and a Golden Globe.  Anthropologists continue to believe that Polynesia was settled from west to east, based on linguistic, physical, and genetic evidence, migration having begun from the Asian mainland. There are controversial indications, though, of some sort of South American/Polynesian contact, most notably in the fact that the South American sweet potato is served as a dietary staple throughout much of Polynesia. Blood samples taken in 1971 and 2008 from Easter Islanders without any European or other external descent were analysed in a 2011 study, which concluded that the evidence supported some aspects of Heyerdahl's hypothesis. This result has been questioned because of the possibility of contamination by South Americans after European contact with the islands. However, more recent DNA work (after Heyerdahl's death) contradicts the post-European-contact contamination hypothesis, finding the South American DNA sequences to be far older than that. Heyerdahl had attempted to counter the linguistic argument with the analogy that he would prefer to believe that African-Americans came from Africa, judging from their skin colour, and not from England, judging from their speech.

Answer this question "Did he go on the expedition alone?"
output: Heyerdahl and five fellow adventurers
Problem: Background: Richard John Grayson is a fictional character, a superhero appearing in American comic books published by DC Comics, commonly in association with Batman. Created by writer Bill Finger and artist Bob Kane, he first appeared in Detective Comics #38 in April 1940 as the original incarnation of Robin. In Tales of the Teen Titans #44 (July 1984) the character retires his role as Robin and assumes the superhero persona of Nightwing, created by Marv Wolfman and artist George Perez. The youngest in a family of Gotham City acrobats known as the "Flying Graysons", Dick watches a mafia boss kill his parents in order to extort money from the circus that employed them.
Context: 1964's The Brave and the Bold #54 introduces a junior version of the Justice League of America; an all-star superhero team of which Batman was a part. This team is led by the modern-day Robin, residing on Earth-One, and was joined by two other teenage sidekicks, Aqualad (sidekick of Aquaman) and Kid Flash (sidekick of the Flash), to stop the menace of Mr. Twister.  Later, the three sidekicks join forces with Speedy and Wonder Girl in order to free their mentors in the JLA from mind-controlled thrall. They decide to become a real team: the Teen Titans. By virtue of the tactical skills gleaned from Batman, Robin is swiftly recognized as leader before the Titans disband some years later.  In 1969, still in the Pre-Crisis continuity, writer Dennis O'Neil and artist Neal Adams return Batman to his darker roots. One part of this effort is writing Robin out of the series by sending Dick Grayson to Hudson University and into a separate strip in the back of Detective Comics. The by-now Teen Wonder appears only sporadically in Batman stories of the 1970s as well as a short lived revival of The Teen Titans.  In 1980, Grayson once again takes up the role of leader of the Teen Titans, now featured in the monthly series The New Teen Titans, which became one of DC Comics's most beloved series of the era. During his leadership of the Titans, however, he had a falling out with Batman, leading to an estrangement that would last for many years.
Question: What role did he play in Teen Titans?
Answer: In 1980, Grayson once again takes up the role of leader of the Teen Titans,
Question: Sylvia Jane Hutton (nee Kirby, born December 9, 1956), known simply by her first name Sylvia during the 1980s, is an American country music and country pop singer and songwriter. Some original source books have her birth name as Sylvia Kirby Allen; however, Allen was her first husband's last name. She consequently used only her first name. There was also a point in time that she used Sylvia Rutledge.

The release of her fourth album, Surprise, spurred her second foray into the Adult Contemporary charts, but neither its sound, nor her newly shorn locks courtesy Francesco Scavullo, were well received in country music. Surprise was the last of Sylvia's first four albums to be produced by Tom Collins, who also produced Mandrell, Charley Pride, and Ronnie Milsap. They have been described by critics as too slick for country music.  Her following album, One Step Closer, produced by The Judds' producer Brent Maher, had a more guitar-driven feel to it as opposed to her previously more orchestrated affairs. It was followed up by Sylvia's last top 40 country hit, "Nothin' Ventured, Nothin' Gained", from the unreleased album Knockin Around. The shelving of this album marked the end of Sylvia's tenure with RCA Records. The label did release a Greatest Hits compilation and a single from it titled "Straight from my Heart" (written with Jimmy Fortune of The Statler Brothers). The record received little promotion from RCA and the single charted in the low 60s. In the late 1980s, RCA began streamlining its roster of country-pop artists and the casualties included Sylvia, Dolly Parton, Louise Mandrell, Deborah Allen, Juice Newton, John Denver and Kenny Rogers.  Over an eight-year period, Sylvia crisscrossed America many times with her popular concert performances (over 200 per year), and she was a frequent guest on network television talk shows and specials -- from The Today Show and Good Morning, America to Dick Clark's American Bandstand and the Country Music Awards.  Her decision to stop touring and recording at the end of the 1980s was not fueled by the grueling schedule, as some might guess, but by her desire to bring more of herself to the music, she turned her energies to songwriting.

Using a quote from the above article, answer the following question: What was the reason for her decision?
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Answer:

assistant: but by her desire to bring more of herself to the music, she turned her energies to songwriting.