input: In 1930, he became a broadcaster with the CBS Radio network, delivering a nightly news and commentary program. After two years, he switched to the NBC Radio network but returned to CBS in 1947. In contrast to today's practices, Thomas was not an employee of either NBC News or CBS News. Prior to 1947, he was employed by the broadcast's sponsor Sunoco. He returned to CBS to take advantage of lower capital-gains tax rates, establishing an independent company to produce the broadcast which he sold to CBS. He hosted the first-ever television news broadcast in 1939 and the first regularly scheduled television news broadcast (even though it was just a camera simulcast of his radio broadcast) beginning on February 21, 1940 over local station W2XBS (now WNBC) New York. It is not known whether all or some of the radio/TV simulcasts were carried by the two other television stations capable of being fed programs by W2XBS at the time, which were W2XB (now WRGB) Schenectady and W3XE (now KYW-TV) Philadelphia). In the summer of 1940, Thomas anchored the first live telecast of a political convention, the 1940 Republican National Convention which was fed from Philadelphia to W2XBS and on to W2XB. Reportedly, Thomas wasn't even in Philadelphia, instead anchoring the broadcast from a New York studio and merely identifying speakers who addressed the convention. The television news simulcast was a short-lived venture for him, and he favored radio. Indeed, it was over radio that he presented and commented upon the news for four decades until his retirement in 1976, the longest radio career of anyone in his day (a record later surpassed by Paul Harvey). "No other journalist or world figure, with the possible exception of Winston Churchill, has remained in the public spotlight for so long," wrote Norman R. Bowen in Lowell Thomas: The Stranger Everyone Knows (1968). His signature sign-on was "Good evening, everybody" and his sign-off "So long, until tomorrow," phrases that he would use in titling his two volumes of memoirs.

Answer this question "how long did this last"
output: 1947.

Problem: Background: Edward Rickenbacker was born in Columbus, Ohio, to Swiss German-speaking immigrants. From childhood, he loved machines and experimented with them, encouraged by his father's words: "A machine has to have a purpose". In what was to become one of the defining characteristics of Rickenbacker's life, he nearly died many times in events ranging from an early run-in with a horse-drawn carriage, to a botched tonsillectomy, to airplane crashes. His first life-threatening experience occurred when he was in the "Horsehead Gang".
Context: Rickenbacker's most lasting business endeavor was his longtime leadership of Eastern Air Lines. Through the 1920s, he had worked with and for General Motors (GM): first as the California distributor for its new car, the short-lived Sheridan, then later as a marketer for the LaSalle, and finally as vice president of sales for their affiliate, Fokker Aircraft Company. He persuaded GM to purchase North American Aviation, a conglomerate whose assets included Eastern Air Transport. GM asked him to manage Eastern, beginning in 1935. With the help of some friends, Rickenbacker merged Eastern Air Transport and Florida Airways to form Eastern Air Lines, an airline that eventually grew from a company flying a few thousand miles per week into a major airline. In April 1938, after learning that GM was considering selling Eastern to John D. Hertz, Rickenbacker met with GM's Chairman of the Board, Alfred P. Sloan, and bought the company for $3.5 million. Rickenbacker oversaw many radical changes in the field of commercial aviation. He negotiated with the U.S. government to acquire air mail routes, a great advantage to companies in need of business. He helped develop and support new aircraft designs. Rickenbacker bought the new, large, faster airliners for Eastern Air Lines, including the four-engined Lockheed Constellation and Douglas DC-4. Rickenbacker personally collaborated with many of the pioneers of aviation, including Donald W. Douglas, the founder of the Douglas Aircraft Company, and the designer and builder of the large, four-engined airliners, the DC-4, DC-6, DC-7, and DC-8 (its first jet airliner). Rickenbacker promoted flying to the American public, but, always aware of the possibility of accidents, he wrote in his autobiography, "I have never liked to use the word "safe" in connection with either Eastern Air Lines or the entire transportation field; I prefer the word 'reliable'."
Question: What type of projects did he work on while at Eastern?
Answer: He helped develop and support new aircraft designs.

Question: The Houston Livestock Show and Rodeo, also called RodeoHouston or abbreviated HLSR, is the largest livestock exhibitions and rodeo in the world. It also includes one of the richest regular-season rodeo events. It has been held at NRG Stadium in Houston, Texas, since 2003. It was previously held in the Astrodome.

Since 1952, traditional trail rides have been a part of the Houston Livestock Show and Rodeo. As of 2017, there were 13 official trail rides, totaling over 3,000 riders. The trail rides range in size from a dozen to over one thousand people who ride on horseback or in horse-drawn wagons from various areas of the state to Houston. They make their way at about 3 miles (4.8 km) per hour, covering up to 17 miles (27 km) each day. Many of the routes take place in part along major highways and busy city streets, making safety a major concern. The trail rides last from a few days to three weeks, depending on the distance they cover. Some of the participants are able to join only on weekends or at the end of the trip. The days start very early, and often end with live music or a small celebration. Many riders choose to camp in recreational vehicles rather than in the open. Each morning, they drive their vehicles and horse trailers to the next camping spot, then have a bus or convoy take them back so they can retrace their path on horseback. Participants can bring their own provisions, or, in some cases, purchase meals at a chuck wagon that is also following the trail. The rides converge at Memorial Park in Houston on Go Texan Day, the Friday before the livestock show and rodeo begins. The city closes some roads downtown to allow the riders to reach their destination safely. The resulting traffic interruption cause annual complaints from those who work downtown. The following day, all of the trail riders participate in the parade.

Using a quote from the above article, answer the following question: Do people ride on horses?
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Answer:
The trail rides range in size from a dozen to over one thousand people who ride on horseback or in horse-drawn wagons from various areas of the state to Houston.