what is the {series ordinal} for {Hokkaido University} has {chairperson} as {Toyoharu Nawa} ?
What is Hokkaido University's series ordinal under chairperson Toyoharu Nawa?
SELECT ?value WHERE { wd:Q1057199 p:P488 ?s . ?s ps:P488 wd:Q47536230 . ?s pq:P1545 ?value}
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1057199> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P488> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q47536230> .
?statement <http://www.wikidata.org/entity/P1545> ?value. 
} 

What is the ordinal of Hokkaido University?