"Landformen"@de . . . . "Vulkan"@de . . "بركان"@ar . . "Volcano"@en . . "آتشفشان"@fa . . "http://archwort.dainst.org/thesaurus/de/vocab/?tema=9897"@de . "http://vocab.getty.edu/aat/300132325 (volcanoes)"@en .