Excerpt from the database UP-base v.9 beta for "instruction" (ie, contains the words Kei instruction instruction manual). The database contains 1999999 keys.
Tested on the frequency quoted in wordstat.yandex 08.10.2015
Base format csv (2 files) and txt (1 file)
In the database doubles, characters, initial and final double spaces.
To sample from a txt file by frequency in the archive there is a program Sortkey.
Other bases can be found in the "Information on the seller and its products."
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