is#database_management_task__database_management  a DB management (sub)task
  supertype:  information_sciences_task__information_management_task__information_management__informationmanagement  may be "_subtask" would be more appropriate than "_task" here and in the subtypes
  tool:  electronic_database (is)  DBMS (is)
  subtype:  data_indexation_or_search_in_a_database
     subtype:  data_indexation_in_database
  subtype:  mapping/merging/federation_of_DBs

No statement uses or specializes database_management_task; click here to add one.