"person_id","name","gender","age_group"
1,"John","male","child"
2,"Lucy","female","child"
3,"Tom","male","adult"
4,"Mary","female","adult"
5,"Pim","male","adult"
6,"Zoe","female","adult"
7,"Bert","male","senior"
8,"Maria","female","senior"
9,"Jim","male","senior"
10,"Whitney","female","senior"
11,"Marc","male","senior"
12,"Carol","female","senior"
