Question: John Spalvins, born Janis Gunnars Spalvins, in 1936, in Latvia, was Managing Director of the Adelaide Steamship Company from 1977 until the company's collapse in 1991, it was formed by a group of South Australian businessmen in which year?
Sentence (from "John Spalvins"): "Spalvins built up one of Australia's largest industrial conglomerates, which took in David Jones, Woolworths, Metro Meat, food company Petersville Sleigh, beer and wine company Tooth & Co, as well as a tugboat business, before it was put into receivership in 1991."
Relevant evidence: No