Tell me the security agency of chairperson Yuri Andropov that contains the word kgb in it's name?
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q3238445 . ?sbj wdt:P488 wd:Q44071 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'kgb')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
security agency: Q3238445 yuri andropov: Q44071