What are the dialect that writing system Cantonese Braille and which that starts with the letter c
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q33384 . ?sbj wdt:P282 wd:Q13586477 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'c')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
dialect: Q33384 cantonese braille: Q13586477