user: Question: What is Non-Resident Head of Mission, when Local Location is "Warsaw", and when Mission is "Poland"?
Columns: ['Mission', 'Resident Country', 'Local Location', 'Local Mission', 'Non-Resident Head of Mission', 'Local Position']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Andorra', 'Spain', 'N/A', 'N/A', 'César Medina', 'Ambassador']
SQL:

assistant: SELECT "Non-Resident Head of Mission" FROM "Table" WHERE "Local Location" = 'Warsaw' AND "Mission" = 'Poland';