Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Context : The Roland JX-3P is a synthesizer produced by Roland Corporation of Japan in 1983. 
Answer : Roland Corporation
What studio produced Roland JX-3P?

Context : The naval Battle off Ulsan (Japanese: 蔚山沖海戦 Urusan'oki kaisen; Russian: Бой в Корейском проливе, Boi v Koreiskom prolive), also known as the Battle of the Japanese Sea or Battle of the Korean Strait, took place on 14 August 1904 between cruiser squadrons of the Imperial Russian Navy and the Imperial Japanese Navy during the Russo-Japanese War, four days after the Battle of the Yellow Sea. 
Answer : 14 August 1904
What is the date when Battle off Ulsan happened?

Context : The Last Blitzkrieg is a 1959 World War II film produced by Sam Katzman and filmed at Veluwe and the Cinetone Studios in Amsterdam for a Columbia Pictures release. 
Answer : Columbia Pictures

What production company was involved in The Last Blitzkrieg?