Part 1: Draw data models for the following entities. In each case, make certain that you show the attributes and identifiers. Also, create a relational database and insert three rows for each of the tables that you create. The data can be anything you create that fits within any constraints specified in the problem. You should submit a file with the data model drawn and the SQL used to create and populate the tables.

The Marathoner, a monthly magazine, regularly reports the performance of professional marathon runners. It has asked you to design a database to record the details of all major marathons (e.g., Boston, London, and Paris). Professional marathon runners compete in several races each year. A race may have thousands of competitors, but only about 200 or so are professional runners, the ones The Marathoner tracks. For each race, the magazine reports a runner's time and finishing position and some personal details such as name, gender, and age.