Question: Find the products which have problems reported by both Lacey Bosco and Kenton Champlin?
Schema: create table product (product_name varchar, product_id varchar, PRIMARY KEY (product_name)); create table staff (staff_id varchar, staff_first_name varchar, staff_last_name varchar, PRIMARY KEY (staff_id)); create table problems (product_id varchar, reported_by_staff_id varchar, PRIMARY KEY (product_id))
SQL: select t2.product_name from problems as t1 join product as t2 join staff as t3 on t1.product_id = t2.product_id and t1.reported_by_staff_id = t3.staff_id where t3.staff_first_name = "lacey" and t3.staff_last_name = "bosco" intersect select t2.product_name from problems as t1 join product as t2 join staff as t3 on t1.product_id = t2.product_id and t1.reported_by_staff_id = t3.staff_id where t3.staff_first_name = "kenton" and t3.staff_last_name = "champlin"