Datasets:
| file_id,age,gender,country,file | |
| 1,young,female,Brazil,photo/1.jpg | |
| 2,young,male,USA,photo/2.jpg | |
| 3,young,female,Spain,photo/3.jpg | |
| 4,old,male,USA,photo/4.jpg | |
| 5,middle-aged,male,Thailand,photo/5.jpg |
| file_id,age,gender,country,file | |
| 1,young,female,Brazil,photo/1.jpg | |
| 2,young,male,USA,photo/2.jpg | |
| 3,young,female,Spain,photo/3.jpg | |
| 4,old,male,USA,photo/4.jpg | |
| 5,middle-aged,male,Thailand,photo/5.jpg |