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Left-sorted Bongard Problems have the keyword "keyword" on the OEBP.
Adjacent-numbered pages: BP513 BP514 BP515 BP516 BP517  *  BP519 BP520 BP521 BP522 BP523
meta (see left/right), links, keyword, oebp, left-self, left-it, feedback, funny
bppage [smaller | same | bigger]zoom in left (keyword)
Aaron David Fairbanks