Question: Use the instance diagram depicting the ternary relationship Orders shown on the next page to answer the following questions. a. Which customers order pens from

Use the instance diagram depicting the ternary relationship Orders shown on the next page to answer the following questions.
a. Which customers order pens from the Galveston warehouse?
b. Which items are ordered by customers from both warehouses?
c. Which warehouse fills one or more orders of items from both customers?
d. Describe orders filled from both warehouses.
e. What changes must be made to the instance diagram for order r1 to involve both pencils and pens?

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