| Subject | English | Japanese |
| gen. | daughter category - PSG structure tree | 子範疇 |
| comp. | n hierarchical tree structure | 階層木構造 |
| gen. | mother category - PSG structure tree | 親範疇 |
| comp. | n tree structure | ツリー構造 |
| comp. | n tree structure | 木構造 (mokukōzō) |
| gen. | tree structure | ツリー gai1 |