{
item_0
} 0+
{
item_1
} 0+
{
item_2
} 0+
{
item_3
} 0+
{
item_4 (not leaf)
}
{
4_a [level 2] (not leaf)
}
{
4_a_I [level 3]
} 2+
{
4_a_II [level 3] (not leaf)
}
{
4_a_II_A [level 3]
}
{
4_b [unsel override]
} 1+
{
4_c [unsel override]
}