Classifier Instance:

Anchor text: Encyclopædia Britannica
Target Entity: Encyclop\u00e6dia_Britannica
Preceding Context: At the meeting, Feynman concluded his talk with two challenges, and he offered a prize of $1000 for the first individuals to solve each one. The first challenge involved the construction of a tiny motor, which, to Feynman's surprise, was achieved by November 1960 by William McLellan, a meticulous craftsman, using conventional tools. The motor met the conditions, but did not advance the art. The second challenge involved the possibility of scaling down letters small enough so as to be able to fit the entire
Succeeding Context: on the head of a pin, by writing the information from a book page on a surface 1/25,000 smaller in linear scale. In 1985, Tom Newman, a Stanford graduate student, successfully reduced the first paragraph of A Tale of Two Cities by 1/25,000, and collected the second Feynman prize.
Paragraph Title: Challenges
Source Page: There's Plenty of Room at the Bottom

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