what is the {instance of} for {Bi Sheng} has {date of birth} as {990-1-1} ?
How often is the birth date of Bi Sheng listed as 1-1-990?
How many times is the date of birth listed as 1-1-990 for Bi Sheng?
SELECT ?o WHERE { ?i property:date_of_birth ?z . ?i rdf:type ?o . FILTER ( CONTAINS ( ?z , '990-1-1' ) ) . resource:Bi_Sheng property:date_of_birth ?i }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q200662> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P569> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <990-1-1> .
?statement <http://www.wikidata.org/entity/P31> ?value. 
} 

SELECT ?value WHERE { wd:Q200662 p:P569 ?s . ?s ps:P569 ?x filter(contains(?x , '990-1-1')) . ?s pq:P31 ?value}