Classifier Instance:

Anchor text: decays
Target Entity: Radioactive_decay
Preceding Context: An illumination device called a 'betalight' contains tritium and a phosphor. As tritium
Succeeding Context: , it emits beta particles; these strike the phosphor, causing the phosphor to give off photons, much like the cathode ray tube in a television. The illumination requires no external power, and will continue as long as the tritium exists (and the phosphors do not themselves chemically change); the amount of light produced will drop to half its original value in 12.32 years, the half-life of tritium.
Paragraph Title: Uses
Source Page: Beta particle

Ground Truth Types:

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Predicted Types:

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yagoGeoEntity-2.382728181309087 0
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