Exercise 4.4 Consider the Supplier-Parts-Catalog schema from the previous ques- tion. State what the following queries compute: 1. Tsname (Tsid((o color=red' Parts) (Jcost<100Catalog)) - Suppliers) 2. Tsname (Tsid ((0 color="red' Parts) (O cost<100 Catalog) ¤ Suppliers)) 3. (Tsname (ocolor=red' Parts) (o cost<100 Catalog) Suppliers))n (Tsname ((Ocolor="green' Parts) (O cost<100Catalog) A Suppliers)) 4. (Tsid((Ocolor="red' Parts) ¤ (O cost<100 Catalog) ¤ Suppliers)) n (Tsid((Ocolor="green Parts) ¤ (đcost<100 Catalog) ¤ Suppliers)) 5. Tsname ((Tsid,sname((Ocolor='red' Parts) 0cost<100Catalog) A Suppliers)) n (Tsid,sname((Ocolor='green' Parts) ¤ (Ocost<100Catalog) Suppliers)))

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