Name the American federal holiday that contain the word " thanksgiving" in its name
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q5440534 . ?sbj wdt:P276 wd:Q29 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'thanksgiving')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
federal holiday in the united states: Q5440534 spain: Q29