http://AATesaurus.cultura.gencat.cat/aat/getty_enhttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31296830Activities Facet http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31296830 top of the aat hierarchies BT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31296830 Processes and Techniques NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31296830 activities NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31296830 Physical and Mental Activities NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31296830 Events NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31296830 Functions NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31296830 Disciplines NT