a   b   i x                   y                   t
pan pan 1 0.3467901443380824  0.7268028627434533  1970-01-01T00:00:01.1234567Z
eks pan 2 0.7586799647899636  0.5221511083334797  1970-01-01T00:00:02.1234567Z
wye wye 3 0.20460330576630303 0.33831852551664776 1970-01-01T00:00:03.1234567Z
eks wye 4 0.38139939387114097 0.13418874328430463 1970-01-01T00:00:04.1234567Z
