Create a set of normalized relations given the patient bill below. Start with a single table (could be in NNF) and then proceed to 1NF, 2NF and 3NF. If the first table is in NNF, explain why it is NNF and the steps to take it to 1NF. Do not draw a dependency diagram for NNF; only the relational schema is needed. At each subsequent NF show the relational schema and the dependency diagram for each table. Write out the dependencies. State clearly any (reasonable) assumptions you may make. (26 points) 4. 2/28/16 Bill number Date admitted 2/14/16 Patient # Patient Address 3200 Oak Avenue Boulder, NC 28223 Cost Center Bill date Discharge date 2/17/16 Patient NameJoanna Doe 34687421 8624 Cost Name Room & Balance Due Date Charged 2/14/1610000 Semi-private room 200.00 2/14/1610050 Television 2/15/16 2/16/16 10000 Semi-private roonm Item Code Description Charge 100 25.00 10000 Semi-private roonm 200.00 Subtotal 625.00 Laboratory 2/14/16 11080 Glucos 75.00 110 2/15/1611055 Culture 70.00 Subtota145.00 125 Radiology 2/15/16 12530 X-ray chest 130.00 Subtotal 130.00 Balance due900.00 Business Rules The bill is issued a few days (not a set number of days) after the discharge date Each charged item belongs to a specific cost center . . Each item belongs in a single cost center All subtotals and the balance due are computed