What is the Zip Code where Janessa Lived? | Do you mean the zip postcode in the address where Janessa lived? | Yes
SELECT T1.zip_postcode FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id  =  T2.staff_address_id WHERE T2.first_name  =  "Janessa"
Zip Code refers to zip_postcode; lived refers to a connection between Staff and Addresses tables through staff_address_id and address_id; first_name condition for 'Janessa';