Compiling lists and separating thru branches

Grasshopper
1

Hi everyone
I need help regarding compiling list.

I have a source of list where every time I hit a trigger button it generates a new list. what I need to have is a compilation of generated lists and it should be separated by branches

for example generated list 1
1
2
3
4

generated list 2
a
b
c
d

generated list 3
w
x
y
z

the output of this is a tree with three branches
{1}
a
b
c
d

{2}
1
2
3
4

{3}
w
x
y
z

2

Try Entwine component to combine all lists into one single tree.