What are the gene that encode Insulin, isoform CRA_a and which that starts with the letter i
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q7187 . ?sbj wdt:P688 wd:Q21121462 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'i')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
gene: Q7187 insulin, isoform cra_a: Q21121462