What are the philosophical concept which start with the letter übermensch
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q33104279 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'übermensch')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
philosophical concept: Q33104279