Tell me the metropolitan area that is maintained by the Metropolitan Manila Development Authority and starts with the letter m?
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:/instance of/ wd:/metropolitan area/ . ?sbj wdt:/maintained by/ wd:/Metropolitan Manila Development Authority/ . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'm')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 