Directory Structure for Data.txt

Data
|
+-- boxing
|   |
|   +-- video_file_1
|   ...
|   +-- video_file_n
|
+-- handcapping
|   |
|   +-- video_file_1
|   ...
|   +-- video_file_n
|
+-- handwaving
|   |
|   +-- video_file_1
|   ...
|   +-- video_file_n
|
+-- jogging
|   |
|   +-- video_file_1
|   ...
|   +-- video_file_n
|
+-- running
|   |
|   +-- video_file_1
|   ...
|   +-- video_file_n
|
+-- walking
|   |
|   +-- video_file_1
|   ...
|   +-- video_file_n
+