The On-Line Encyclopedia of Bongard Problems

Three pairs of parallel and non-collinear pieces of straight lines, each pair with a different slope vs. not so.

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	CROSSREFS	`Adjacent-numbered pages: BP250 BP251 BP252 BP253 BP254 * BP256 BP257 BP258 BP259 BP260`
	KEYWORD	`traditional`
	CONCEPT	`feature_cluster (info \| search),` `cluster (info \| search),` `three (info \| search),` `parallel (info \| search)`
	AUTHOR	`Andreas Gunnarsson`

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