What is {material used} of {paper} that is {nature of statement} is {often} ?
Which type of paper is the most prevalent?
What's the most common type of paper?
SELECT ?i WHERE { ?c property:made_from_material ?i . ?c property:nature_of_statement resource:often . resource:paper property:made_from_material ?c }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q11472> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P186> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P5102> <http://wikidata.dbpedia.org/resource/Q28962312>
} 

SELECT ?obj WHERE { wd:Q11472 p:P186 ?s . ?s ps:P186 ?obj . ?s pq:P5102 wd:Q28962312 }