what is the {series ordinal} for {Mika Waltari} has {given name} as {Toimi} ?
From which moment did Toimi be used by Mika Waltari?
When did Mika Waltari begin to go by Toimi?
SELECT ?v WHERE { ?f property:series_ordinal ?v . resource:Mika_Waltari property:given_name ?f . ?f property:given_name resource:Toimi }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q193111> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P735> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q5395988> .
?statement <http://www.wikidata.org/entity/P1545> ?value. 
} 

SELECT ?value WHERE { wd:Q193111 p:P735 ?s . ?s ps:P735 wd:Q5395988 . ?s pq:P1545 ?value}