Tell me landscape type whose name has the word tundra in it.
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q1803829 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'tundra')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
landscape type: Q1803829