This is an example of a meta Bongard Problem that sorts itself left, and would still sort itself left after the sides in the title were switched.
That is, this BP is tagged the keyword left-self and so would its flipped version be.
See also the keyword feedback for chains of meta Bongard Problems that eventually form loops.
Adjacent-numbered pages: BP1070 BP1071 BP1072 BP1073 BP1074  *  BP1076 BP1077 BP1078 BP1079 BP1080
notso, arbitrary, meta (see left/right), links, left-self, experimental
Aaron David Fairbanks