Name_ a1: Each Car has a unique VIN Number, Make, Model, Model Year. ACar is either owned by the company or leased. For owned cars, the purchase date and purchase price needs to be recorded. For leased cars, the begin data and end date of the lease as well as the monthly lease cost needs to be recorded. Leased cars are leased from a Leasing Company, and information about the leasing company such as name and address need to be captured. Each leasing company can lease many cars, however, each car is leased by only one leasing company. Create an ER Model to represent this scenarico. Q2: A concert includes performance by one or multiple artists. Each artist can perform in none or multiple concerts. For each artist that performs in a concert, we need to record if the artist participated as a guest appearance or as a main artist. Create an ER Model to represent this scenario