I'm trying to select elements `<BBB>` who have in their descendants at least 2 more elements of the same type at different depths.
I found it possible with: 

```
//BBB//BBB//BBB 

```

but if i want to change the depth of my query I have to write:

```
//BBB//BBB//BBB//BBB
or
//BBB//BBB  

```

Is it possible specify the depth of my query with a parameter?