Question:
Which team did Tullio Grassi play for in May, 1938?

Context:
 Tullio Grassi plays for Swiss national football team from Jan, 1929 to Jan, 1938. 
 Tullio Grassi plays for Grasshopper Club Zürich from Jan, 1930 to Jan, 1932. 
 Tullio Grassi plays for FC Chiasso from Jan, 1929 to Jan, 1930. 
 Tullio Grassi plays for FC Lugano from Jan, 1938 to Jan, 1939.

Answer:
Question:
Which team did Tullio Grassi play for in May, 1938?

Context:
 Tullio Grassi plays for Swiss national football team from Jan, 1929 to Jan, 1938. 
 Tullio Grassi plays for Grasshopper Club Zürich from Jan, 1930 to Jan, 1932. 
 Tullio Grassi plays for FC Chiasso from Jan, 1929 to Jan, 1930. 
 Tullio Grassi plays for FC Lugano from Jan, 1938 to Jan, 1939.

Answer:
user
FC Lugano
assistant
Question:
Which team did Tullio Grassi play for in May, 1938?

Context:
 Tullio Grassi plays for Swiss national football team from Jan, 1929 to Jan, 1938. 
 Tullio Grassi plays for Grasshopper Club Zürich from Jan, 1930 to Jan, 1932. 
 Tullio Grassi plays for FC Chiasso from Jan, 1929 to Jan, 1930. 
 Tullio Grassi plays for FC Lugano from Jan, 1938 to Jan, 1939.

Answer:
user
Swiss national football team
FC Chiasso
Grasshopper Club Zürich
assistant
Question:
Which team did Tullio Grassi play for in May, 1938?

Context:
 Tullio Grassi plays for Swiss national football team from Jan, 1929 to Jan, 1938. 
 Tullio Grassi plays for Grasshopper Club Zürich from Jan, 1930 to Jan, 1932. 
 Tullio Grassi plays for FC Chiasso from Jan, 1929 to Jan, 1930. 
 Tullio Grassi plays for FC Lugano from Jan, 1938 to Jan, 1939.

Answer:
user
FC Lugano
assistant