In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Passage: Jarrett's career began in South Florida, where he was a successful stage and commercial actor and print model. His first feature film role was in the teen comedy "Summer Job", where he played an effete hairdresser. Next came minor roles in such films as The Bodyguard with Kevin Costner and Whitney Houston as well as Miami Vice and Unsolved Mysteries. Jarrett also hosted several nationally syndicated television shows, such as "Flight," "American Automotive," and "Better Farming" for SportsChannel America, as well as an exercise video with world championship boxer Alexis Arguello called "Boxercise." In 1992, Jarrett journeyed to Los Angeles and turned his attention to screenwriting. His original screenplay Laws of Deception was made into a film in 1997 and starred C. Thomas Howell, James Russo and Brian Austin Green and was directed by Joey Travolta, brother of John Travolta. Jarrett had a small role in this film as Mr. Farina, a corrupt businessman. Another original script entitled American Vampire was produced and starred Carmen Electra, Sydney Lassick, and Adam West. It was Carmen Electra's first feature. In 2003, Jarrett appeared as a contestant on the brainy television game show Jeopardy! as Rollin Jewett. In 2004, Jarrett was commissioned by Scott Reeves and Aaron Benward, the popular country music duo known as Blue County, to write a script in which they were to costar as brothers in a fictional place called Blue County. As the duo's music became more popular, the film was postponed and Benward and Reeves used the name for their band, which is still touring today. In 2017, his feature screenplay "Demons 4 Dummies" was a finalist in the Final Draft Big Break Screenwriting Contest.
 Link Information: The Bodyguard (1992 film) Question: What year did Jarrett play a minor role in The Bodyguard with Kevin Costner?
Answer: 1992 

Passage: Lawson accepted an offer from Yamaha to contest the 500cc World Championship as Kenny Roberts' teammate for the 1983 season. Lawson spent the 1983 season learning the ropes of the Grand Prix circuit. In 1984, Lawson began winning regularly and won the 1984 World Championship. It would mark the first of four world titles Lawson would go on to win. In 1985, he won the prestigious Imola 200 pre-season race. After winning two more titles for Yamaha in 1986 and 1988, Lawson shocked the racing world by announcing he would be leaving Yamaha to sign with their arch-rivals Rothmans Honda as teammate to his own archrival, Australia's 1987 World Champion Wayne Gardner. By switching teams, Lawson also fulfilled his desire to work with Erv Kanemoto. After Gardner crashed and broke his leg during the third round at Laguna Seca, Lawson went on to win the 1989 title for Honda, becoming the first rider to win back-to-back championships on machines from different manufacturers. By winning with both Yamaha and Honda, Lawson silenced his critics who believed he would not be as successful away from the factory Marlboro Yamaha team.
 Link Information: Eddie Lawson also joined Rothmans Honda in 1989 and went on to win his fourth World Championship.

Gardner had a frustrating season in 1990. After winning at Jerez in Spain, he missed three rounds through injury and only managed 5th in the World Championshi Question: How many championships had Lawson's archrival and later teammate win?
Answer: 1

Passage: Italy's search for colonies continued until February 1886, when, by secret agreement with Britain, it annexed the port of Massawa in Eritrea on the Red Sea from the crumbling Egyptian Empire. Italian annexation of Massawa denied the Ethiopian Empire of Yohannes IV an outlet to the sea and prevented any expansion of French Somaliland. At the same time, Italy occupied territory on the south side of the horn of Africa, forming what would become Italian Somaliland. However, Italy coveted Ethiopia itself and, in 1887, Italian Prime Minister Agostino Depretis ordered an invasion, leading to the Eritrea War. This invasion was halted after the loss of five hundred Italian troops at the Battle of Dogali. Depretis's successor, Prime Minister Francesco Crispi signed the Treaty of Wuchale in 1889 with Menelik II, the new emperor. This treaty ceded Ethiopian territory around Massawa to Italy to form the colony of Italian Eritrea, and – at least, according to the Italian version of the treaty – made Ethiopia an Italian protectorate. Relations between Italy and Menelik deteriorated over the next few years until the First Italo-Ethiopian War broke out in 1895, when Crispi ordered Italian troops into the country. Vastly outnumbered and poorly equipped, the result was a decisive defeat for Italy at the hands of Ethiopian forces at the Battle of Adwa in 1896. The Ethiopians were supported by Russian advisers and equipment, as well as by a unit of Russian volunteers. The death toll was 6,889, including 4,133 Italians. The Ethiopians counted at least 4,000 dead and 10,000 wounded. Total Italian, Eritrean, and Somali deaths, including those from disease, were estimated at 9,000.
 Link Information: Agostino Depretis (31 January 181329 July 1887)  Question: How old was the Prime Minister when he ordered an invasion that led to the Eritrea War in 1887?

Answer: 74