What is the economy whose name contains the word russia in it?
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q159810 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'russia')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
economy: Q159810