a   b   i x          y          t
pan pan 1 0.34679014 0.72680286 1970-01-01T00:00:01.123456789Z
eks pan 2 0.75867996 0.52215111 1970-01-01T00:00:02.123456789Z
wye wye 3 0.20460331 0.33831853 1970-01-01T00:00:03.123456789Z
eks wye 4 0.38139939 0.13418874 1970-01-01T00:00:04.123456788Z
