Classifier Instance:

Anchor text: World War II
Target Entity: World_War_II
Preceding Context: The United States experienced a shortage of harmonicas during
Succeeding Context: . Wood and metal materials that were used for harmonicas were in short supply due to military demand. Furthermore, the primary manufacturers of harmonicas were based in Germany and Japan, who happened to be the Axis powers opposed to the United States and the allied forces in the war. It was during this time that Finn Harkon Magnus, a Dutch-American factory worker and entrepreneur, developed and perfected the molded-plastic harmonica. The plastic harmonica used molded plastic combs and far fewer pieces than traditional metal or wood harmonicas, which as a result made the harmonica more sanitary and far more economical to mass produce. Though these harmonicas produced a less distinctive (and, to many ears, inferior) sound than their metallic counterparts due to their plastic reeds, Magnus harmonicas, as well as several imitators, soon became commonplace, particularly among children. The patent for the plastic comb, however, was awarded to William Kratt of Wm. Kratt Company in 1952. During World War II, the War Department allotted a rationed supply of brass to Kratt's factory to continue production of their harmonicas to be passed out by the Red Cross among the GI's serving overseas to boost morale.
Paragraph Title: Early use
Source Page: Harmonica

Ground Truth Types:

Predicted Types:

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