a   b   i   x          y
pan pan NEW 0.34679014 0.72680286
eks pan NEW 0.75867996 0.52215111
wye wye NEW 0.20460331 0.33831853
eks wye NEW 0.38139939 0.13418874
wye pan NEW 0.57328892 0.86362447
zee pan NEW 0.52712616 0.49322129
eks zee NEW 0.61178406 0.18788492
zee wye NEW 0.59855401 0.97618139
hat wye NEW 0.03144188 0.74955076
pan wye NEW 0.50262601 0.95261836
