Getting the Nouns from the Use Cases (Detailed Description)

From looking at the Use Case Documentation, first look at the nouns. In other words, what are the nouns in the Use Cases? Look at all the Nouns in the Use Cases.
Nouns

1. Runner
2. System
3. Pace
4. Data
5. Time
6. Distance
7. Run
8. Application
9. User (Runner)
10. Computer
11. Calculation
12. File
13. Format
14. Name
15. Location (File)