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 "SS Penola"): SS "Perth", formerly SS "Penola" was a  GRT steamship operated by the Adelaide Steamship Company.
Relevant evidence: No