query: SELECT ?item (COUNT(DISTINCT ?ltho) as ?ct) (GROUP_CONCAT( DISTINCT CONCAT("[[", strafter(str(?ltho), "y/"), "|", ?lthoLabel, "]]"); separator=", " ) as ?lighthouses) 
  {
  	?ltho wdt:P31 wd:Q39715 ; wdt:P84 ?item .
      ?item wdt:P31 wd:Q5 .
      FILTER (?ltho != wd:Q15397819 )
      SERVICE wikibase:label { bd:serviceParam wikibase:language "en". ?ltho rdfs:label ?lthoLabel }          
  }
  GROUP BY ?item ?itemLabel
  ORDER BY DESC(?ct) ?item