query: SELECT (SAMPLE (?work) AS ?item)
  (COUNT(?work) AS ?count) ?string 
    (CONCAT(
        '[https://www.wikidata.org/w/index.php?search=',
  
        ENCODE_FOR_URI(?string), ' 🔍]') AS ?WD_search_string)  (CONCAT(
        '[https://author-disambiguator.toolforge.org/names_oauth.php?doit=Look+for+author&name=',
        ENCODE_FOR_URI(?string), ' 🔗]') AS ?resolver_url)
  
  WITH {
    SELECT DISTINCT ?string
     { 
        SERVICE bd:sample { ?paper wdt:P2093 ?string . bd:serviceParam bd:sample.limit 50000 }   
       FILTER (REGEX(LCASE(?string), "(society|committee|association|academy|council|collab|experiment|research|study|trial|project|initiative|institute|national|\\bstate\\b|program|university|\\bschool\\b|\\bcenter\\b|\\bcentre\\b|\\bhospital\\b|patient|\\bstaff\\b|editor|\\(|\\)|america|\\basia\\b|\\basian\\b|europe|africa)"))
     }
  } AS %strings 
  
  
  WHERE {
    INCLUDE %strings
            ?work wdt:P2093 ?string
    }
  GROUP BY ?count ?string ?resolver_url ?item 
  ORDER BY DESC(?count)