Cheetahs are (fast) animal world
Cheetahs are the fastest animal in the world
Burj Khalifa is (tall) building world
Burj Khalifa is the tallest building in the world
Everest is (high) mountain world
Everest is the highest mountain the world
The Nile is (long) river world
The Nile is the longest river in the world
Antarctica is (cold) place world
Antarctica is the coldest place in the world
Blue Whales are (big) animal world
Blue Whales are the biggest animal in the world
Vatican City is (small) country world
The Vatican City is the smallest country in the world
Sultan Kosen is (tall) living human.
Sultan Kosen is the tallest living human.
Malala is (young) Nobel Prize winner.
Malala is the youngest Nobel Prize winner.
