2. 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. (25 points) Charge Bill number 34687421 Bill date 2/28/16 Date admitted 2/14/16 Discharge date 2/17/16 Patient # 8624 Patient Name Joanna Doe Patient Address 3200 Oak Avenue Boulder, NC 28223 Date Cost Center Cost Name Item Code Description Charged Room & 100 2/14/16 10000 Semi-private room Board 2/14/16 10050 Television 2/15/16 10000 Semi-private room 2/16/16 10000 Semi-private room Balance Due 200.00 25.00 625.00 110 11080 Laboratory 2/14/16 2/15/16 Glucose Culture 11055 200.00 200.00 Subtotal 75.00 70.00 Subtotal 130.00 Subtotal Balance due 145.00 125 Radiology 2/15/16 12530 X-ray chest 130.00 900.00 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