HCL_FI_WATERAREA_SUBAREA_DIVISION.csv

URL: https://data.apps.fao.org/catalog/dataset/8bede48f-db4f-4ead-89bb-6d0f2ba2715b/resource/6fce65d6-5a54-4e93-871a-69fb1322253a/download/hcl_fi_waterarea_subarea_division.csv

Hierarchy - relation between SubArea and Division