Classifier Instance:

Anchor text: California
Target Entity: California_Trail
Preceding Context: Because of the Platte's brackish water, the preferred camping spots were along one of the many fresh water streams draining into the Platte or the occasional fresh water spring found along the way. These preferred camping spots became sources of cholera in the epidemic years (1849–1855) as many thousands of people used the same camping spots with essentially no sewage facilities or adequate sewage treatment. One of the side effects of cholera is acute diarrhea which helps contaminate even more water unless it is isolated and/or treated. The cause of cholera, ingesting the Vibrio cholerae bacterium from contaminated water, and the best treatment for cholera infections were unknown in this era. Thousands of travelers on the combined
Succeeding Context: Oregon and succumbed to cholera in the 1849–1855 time period. Most were buried in unmarked graves in Kansas, Nebraska and Wyoming. There are many cases cited where a person would be alive and apparently healthy in the morning and dead by nightfall.
Paragraph Title: Cholera on the Platte River
Source Page: Oregon Trail

Ground Truth Types:

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Predicted Types:

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