I have a data set of this form:
ID child1 child2 child3
1 ADE SOLA BIMPE
2 TUNDE BYRA FUNMY
And I want this output
1D child
1 ADE
1 SOLA
1 BIMPE
2 TUNDE
2 BYRA
2 FUNMY
Please how do I write a code in R to obtain that output