user: ### NOW ANSWER:
Question: What team did the Chicago Black Hawks visit on April 20?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Record']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['April 18', 'Chicago Black Hawks', '2–9', 'Montreal Canadiens', '0-1']
SQL:

assistant: SELECT "Home" FROM "Table" WHERE "Visitor" = 'Chicago Black Hawks' AND "Date" = 'April 20';