user: Question: What is the plant hardiness zone in the Northern region where the annual precipitation is 443mm (17.4in)?
Columns: ['City', 'Region', 'July', 'January', 'Annual Precipitation', 'Plant Hardiness Zone']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Morden', 'Pembina Valley', '26/14°C (79/58°F)', '−11/−20°C (12/-4°F)', '533mm (21.0in)', '3A']
SQL:

assistant: SELECT "Plant Hardiness Zone" FROM "Table" WHERE "Region" = 'Northern' AND "Annual Precipitation" = '443mm (17.4in)';