What is {partner} of {Jonathan Pryce} that is {start time} is {1974-1-1} ?
Who was Jonathan Pryce's partner beginning in 1974?
SELECT ?obj WHERE { wd:Q312702 p:P451 ?s . ?s ps:P451 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1974')) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q312702> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P451> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1974-1-1>
} 

Who was Jonathan Pryce's partner earlier in 1974?