| ID | Foo-1 |
|---|---|
| Parent | |
| Data | foo |
| ID | Foo-2 |
|---|---|
| Parent | Foo-1 |
| Data | ,bar |
| ID | Foo-3 |
|---|---|
| Parent | Foo-2 |
| Data | ,baz |
| ID | Bar-cycle |
|---|---|
| Parent | Bar-cycle |
| Data | foo |
| ID | Foo-1 |
|---|---|
| Parent | |
| Data | foo |
| ID | Foo-2 |
|---|---|
| Parent | Foo-1 |
| Data | ,bar |
| ID | Foo-3 |
|---|---|
| Parent | Foo-2 |
| Data | ,baz |
| ID | Bar-cycle |
|---|---|
| Parent | Bar-cycle |
| Data | foo |