Input: Article: Although the firearms used by the infantry, particularly machine guns, can be used to engage low altitude air targets, on occasion with notable success, their effectiveness is generally limited and the muzzle flashes reveal infantry positions. Speed and altitude of modern jet aircraft limit target opportunities, and critical systems may be armored in aircraft designed for the ground attack role. Adaptations of the standard autocannon, originally intended for air-to-ground use, and heavier artillery systems were commonly used for most anti-aircraft gunnery, starting with standard pieces on new mountings, and evolving to specially designed guns with much higher performance prior to World War II.

Now answer this question: Along with speed of the modern jet, what else limits target opportunities?

Output: altitude

Input: Article: Montana has been a destination for its world-class trout fisheries since the 1930s. Fly fishing for several species of native and introduced trout in rivers and lakes is popular for both residents and tourists throughout the state. Montana is the home of the Federation of Fly Fishers and hosts many of the organizations annual conclaves. The state has robust recreational lake trout and kokanee salmon fisheries in the west, walleye can be found in many parts of the state, while northern pike, smallmouth and largemouth bass fisheries as well as catfish and paddlefish can be found in the waters of eastern Montana. Robert Redford's 1992 film of Norman Mclean's novel, A River Runs Through It, was filmed in Montana and brought national attention to fly fishing and the state.

Now answer this question: What type of fisheries does the state have?

Output: trout and kokanee salmon fisheries

Input: Article: Jean-Jacques Rousseau was the first of many to present the Alps as a place of allure and beauty, banishing the prevalent conception of the mountains as a hellish wasteland inhabited by demons. Rousseau's conception of alpine purity was later emphasized with the publication of Albrecht von Haller's poem Die Alpen that described the mountains as an area of mythical purity. Late in the 18th century the first wave of Romantics such as Goethe and Turner came to admire the scenery; Wordsworth visited the area in 1790, writing of his experiences in The Prelude. Schiller later wrote the play William Tell romanticising Swiss independence. After the end of the Napoleonic Wars, the Alpine countries began to see an influx of poets, artists, and musicians, as visitors came to experience the sublime effects of monumental nature.

Now answer this question: When did the Alpine countries see an influx of poets, artists, and musicians?

Output:
After the end of the Napoleonic Wars