query: SELECT ?item ?itemLabel ?year ?P31 ?creator with 
  { SELECT ?item ?itemLabel 
    (count(distinct ?author) as ?pp)  
    (count(distinct ?type) as ?qq) 
    (group_concat(distinct ?typelabel) as ?P31) 
    (min(year(?date)) as ?year) 
    (group_concat(distinct ?authorLabel) as ?creator) WHERE 
    {
      ?item wdt:P31/wdt:P279* wd:Q5185279.
      filter not exists {?item schema:description ?Len. filter(lang(?Len)="en")}
      ?item wdt:P31 ?type. ?type rdfs:label ?typelabel. filter(lang(?typelabel)="en")
      optional {?item rdfs:label ?itemLabel. filter(lang(?itemLabel)="en")}
      optional {?item wdt:P577 ?date .}
      optional {?item wdt:P50 ?author . optional {?author rdfs:label ?authorLabel. filter(lang(?authorLabel)="en")} }
    } group by ?item ?itemLabel
  } as %i
  where 
  {include %i
   filter (?pp <2)
   filter (?qq <2)
  }