Instruction: Given this text, tell me the inventor of the Rueben sandwich and where it was invented.

Context: One origin story holds that Reuben Kulakofsky (his first name sometimes spelled Reubin; his last name sometimes shortened to Kay), a Lithuanian-born Jewish grocer residing in Omaha, Nebraska, asked for a sandwich made of corned beef and sauerkraut at his weekly poker game held in the Blackstone Hotel from around 1920 through 1935. The participants, who nicknamed themselves "the committee", included the hotel's owner, Charles Schimmel. Schimmel's son, who worked in the kitchen, made the first Reuben for him, adding Swiss cheese and thousand island dressing to his order, putting the whole thing on rye bread. The sandwich first gained local fame when Schimmel put it on the Blackstone's lunch menu, and its fame spread when a former employee of the hotel won the national sandwich idea contest with the recipe. In Omaha, Nebraska, March 14 was proclaimed Reuben Sandwich Day.

Another account holds that the Reuben's creator was Arnold Reuben, the German-Jewish owner of Reuben's Delicatessen (1908–2001) in New York City. According to an interview with Craig Claiborne, Arnold Reuben created the "Reuben Special" around 1914. Bernard Sobel in his 1953 book, Broadway Heartbeat: Memoirs of a Press Agent states that the sandwich was an extemporaneous creation for Marjorie Rambeau, inaugurated when the Broadway actress visited the Reuben's Delicatessen one night when the cupboards were particularly bare.

Still other versions give credit to Alfred Scheuing, a chef at Reuben's Delicatessen, and say he created the sandwich for Reuben's son, Arnold Jr., in the 1930s.

Response: There is no single agreed inventor of the Reuben sandwich. The text gives these possible answers:
*  Reuben Kulakofsky invented the sandwich in Omaha, Nebraska
* Arnold Reuben invented the sandwich at Reuben's Delicatessen in New York City
* Alfred Scheuing invented the sandwich at Reuben's Delicatessen in New York City