Generate a correct and concise answer for the question based on the words in the context.

[Q]: Context : Air Greenland A/S is the flag carrier airline of Greenland, a subsidiary of the SAS Group, owned by the SAS Group, The Greenlandic Government and The Danish Government. 
Question : Which company is the parent company of Air Greenland?
[A]: SAS Group


[Q]: Context : The Boeing 601 (sometimes referred to as the BSS-601, and previously as the HS-601) is a communications satellite bus introduced in 1987 by Hughes Space and Communications Company. 
Question : What year was Boeing 601 commissioned?
[A]: 1987


[Q]: Context : At the outbreak of World War I Walerian Czuma joined the Piłsudski's Polish Legions. 
Question : Which war did Walerian Czuma serve in?
[A]:
World War I


