Please Consider the Following Table and Answer the Questions.

• Suppliers(sid: integer, name: string, address: string) 
• Parts(pid: integer, pname: string, color: string) 
• Catalog(sid: integer, pid: integer, cost: real)
• Find the IDs of suppliers who supply some red or green part.
• Find the IDs of suppliers who supply some red part or are based at 21 George Street.
• Write down the Statement for the following query
• πsname (σcolour=0 red0 (Part) ✶ σcost<100 (Catalog) ✶ Supplier)