1. Given the following database schema owner(owner-name, age) owns (owner_name, num_cats) Write relational algebra for the following: 1. Find the name of all owners above the age of 50 2. Find the name of all owners who own fewer than 5 cats 3. Find the name of all owners who are below the age of 24 and own more than 4 cats 2. Given the following database schema person(name, age, account_id) account(account_id, balance) Write a relational algebra for the following 1. Find the name of all people who have existing account 2. Find the name of all people who have an account balance of greater than 500