,-------------------.  ,-------------------.
|SomeClass A        |  |SomeClass B        |
|-------------------|  |-------------------|
|- _someVar         |  |- _someVar         |
|--                 |  |--                 |
|+ SomeClass()      |  |+ SomeClass()      |
|+ SomeMethod()     |  |+ SomeMethod()     |
|    |_ Tree item 1 |  ||_ Tree item 1     |
|    |_ Tree item 2 |  ||_ Tree item 2     |
|    |_ Tree item 3 |  ||_ Tree item 3     |
|+ SomeOtherMethod()|  |+ SomeOtherMethod()|
`-------------------'  `-------------------'