What are the technical specification which start with the letter webid
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q20819677 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'webid')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
technical specification: Q20819677