Head noun: quadtree
| Same concepts | 
|---|
| http://dbpedia.org/resource/Quadtree | 
Broader concepts
| label | provenance | confidence | 
|---|---|---|
| hierarchical datum structure | isap:185854253 | 0.383155 | 
| datum structure | isap:185854252 | 0.235152 | 
| tree | isap:377976954 | 0.234299 | 
| hierarchy | isap:184122618 | 0.214949 | 
Narrower concepts
| label | provenance | confidence | 
|---|