What national historic trails in the country of the USA have the word trail in their name?
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:/instance of/ wd:/National Historic Trail/ . ?sbj wdt:/country/ wd:/United States of America/ . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'trail')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 