题目 1:
What was Oluf Hartmann's nationality?
题目 2:
At which academy did Oluf Hartmann receive his training in Copenhagen?
题目 3:
Which famous composer was the father of Oluf Hartmann?
题目 4:
In which country did Hartmann study for three years before his death?
题目 5:
Which of these works was painted by Oluf Hartmann?