instruction:
Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.
question:
Context: Charles Wilson Cross died of a heart attack June 2, 1928, in Calgary. 
 Question: What was Charles Wilson Cross's cause of death?
answer:
heart attack


question:
Context: Princess Hildegard of Bavaria (German: Hildegard Luise Charlotte Theresia Friederike von Bayern; 10 June 1825 -- 2 April 1864) was the seventh child and fourth daughter of Ludwig I of Bavaria and Therese of Saxe-Hildburghausen. 
 Question: Who was the mother of Princess Hildegard of Bavaria?
answer:
therese of saxe-hildburghausen


question:
Context: Dorothea Wieck (3 January 1908, Davos, Switzerland -- 19 February 1986, Berlin, West Germany) was a German theatre and film actress. 
 Question: What city did Dorothea Wieck live when he died?
answer:

berlin