What is {given name} of {G. M. Trevelyan} that is {series ordinal} is {1} ?
Get me the name of G. M. Trevelyan with series ordinal 1
Which is {given name} of {G. M. Trevelyan} whose {series ordinal} is {1} ?
SELECT ?l WHERE { ?l property:given_name ?l . resource:G._M._Trevelyan property:given_name ?l . FILTER ( ?o = 1 ) . ?l property:series_ordinal ?o }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1373357> .
?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> ?obj .
?statement <http://www.wikidata.org/entity/P1545> <1>
} 

SELECT ?obj WHERE { wd:Q1373357 p:P735 ?s . ?s ps:P735 ?obj . ?s pq:P1545 ?x filter(contains(?x , '1')) }