a   b   i x          y          ta     tb     ti  tx    ty    tnonesuch
pan pan 1 0.34679014 0.72680286 string string int float float absent
eks pan 2 0.75867996 0.52215111 string string int float float absent
wye wye 3 0.20460331 0.33831853 string string int float float absent
eks wye 4 0.38139939 0.13418874 string string int float float absent
