Fine the name of the project for which a scientist whose name contains "Smith" is assigned to.
SELECT T2.name FROM assignedto AS T1 JOIN projects AS T2 ON T1.project   =   T2.code JOIN scientists AS T3 ON T1.scientist   =   T3.SSN WHERE T3.name LIKE '%Smith%'
scientist name contains 'Smith' refers to LIKE '%Smith%'; name of the project refers to projects.name; joining tables to match scientists with projects they are assigned to;