newer <---- x ----> older
adults:
[x]
raven: [x]* [x]* [x]*
teens:
[x]* [x] [x] [x]
children:
[x]* [x]* [x]* [x]* [x]* [x]* [x] [x] [x] [x]
[x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x]
babies:
[x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x]
[x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x]
secret files:
[x]* [x]* [x]* [x]* [x]* [x]* [x]* [x]* [x]* [x]*