What are the products that have problems reported after 1986-11-13? Give me the product id and the count of problems reported after 1986-11-13.
select count(*), t2.product_id from problems as t1 join product as t2 on t1.product_id = t2.product_id where t1.date_problem_reported > "1986-11-13" group by t2.product_id