In a forest jack observed that, it had:
I) So many trees that you can’t spot the ground.
II) One river.
III) 200 - 400 “Dodo” birds.
IV) There were 0 monkeys..
All these things that he observed are:
Illusions
Data
Dreams
Fantasy
Data
Data is a collection of facts and figures. It can be numbers, words, pictures or just an observation.