Which is the Olympic sport that is an authority of International Biathlon Union and contains the word biathlon in it's name?
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q212434 . ?sbj wdt:P797 wd:Q866910 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'biathlon')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
olympic sport: Q212434 international biathlon union: Q866910