NR k output
1  a pan
1  b pan
1  x 0.34679014
1  y 0.72680286
2  a eks
2  b pan
2  x 0.75867996
2  y 0.52215111
3  a wye
3  b wye
3  x 0.20460331
3  y 0.33831853
5  a wye
5  b pan
5  x 0.57328892
5  y 0.86362447
6  a zee
6  b pan
6  x 0.52712616
6  y 0.49322129
7  a eks
7  b zee
7  x 0.61178406
7  y 0.18788492
8  a zee
8  b wye
8  x 0.59855401
8  y 0.97618139
9  a hat
9  b wye
9  x 0.03144188
9  y 0.74955076
10 a pan
10 b wye
10 x 0.50262601
10 y 0.95261836
