question: What changed the Prussian relationship with Sweden ?
answer: Peter III , at once recalled Russian armies from Berlin ( see : the Treaty of Saint Petersburg ( 1762 ) ) and mediated Frederick 's truce with Sweden
turker_answer: Peter III , at once recalled Russian armies from Berlin ( see : the Treaty of Saint Petersburg ( 1762 ) ) and mediated Frederick 's truce with Sweden and changed the Prussian relationship with Sweden .
rule-based: Peter III , at once recalled Russian armies from Berlin ( see : the Treaty of Saint Petersburg ( 1762 ) ) and mediated Frederick 's truce with Sweden changed the Prussian relationship with Sweden .