user: Question: Who hosted the visiting team Baltimore Ravens?
Columns: ['Date', 'Visiting team', 'Final score', 'Host team', 'Stadium']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['November 23', 'Denver Broncos', '10–19', 'Kansas City Chiefs', 'Arrowhead Stadium']
SQL:

assistant: SELECT "Host team" FROM "Table" WHERE "Visiting team" = 'Baltimore Ravens';