Potamia Construction Co. (PCC) is developing plans to erect a new hospital building. Potamia Construction Co. has established the project activities and their immediate predecessor activities together with their estimated activity durations according to the information described in the following table. Prepare a Gantt chart (horizontal bar chart) for the whole construction activity based on this information.

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CODE A B ACTIVITY G H I Buy the land Get the construction permission Excavate с D Erect building E Electrical work F Plumbing work Paint interior Clean up building Move in furniture IMMEDIATE PREDECESSOR(S) None A B C D D D E, F, G H DURATION (DAYS) 40 30 10 100 10 20 10 5 5