TASK DEFINITION: In this task, you are given a question. You have to answer the question based on your information.
PROBLEM: During which period was Altes Lager an important Viking trading post?

SOLUTION: the late 8th century to the mid-11th century

PROBLEM: What subject did the composer of night music start through his collection and analytical study of folk music?

SOLUTION: comparative musicology

PROBLEM: Where was the stadium where Atlético Madrid home games were held located?

SOLUTION:
San Blas-Canillejas district