Question: Which is the alphabet that is based on the Proto-Sinaitic script and starts with the letter a?
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q9779 . ?sbj wdt:P144 wd:Q1065250 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'a')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25