Tell me the language family that discoverer or inventor of  William Jones and which that starts with the letter e
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q25295 . ?sbj wdt:P61 wd:Q273969 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'e')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
language family: Q25295 william jones: Q273969