than, biggest, smaller, hotter , much，the, hottest, bigger
Some planets are near to the sun. The sun is not a planet. It is a star. It is very hot. It is also very big. It is much than any other planet. In fact the sun is biggest thing in our solar system.
The Earth is the third planet. The hottest planet is the first planet. The Earth is one of the planets. It is very near to the sun.
The Earth is biggest of the four planets. It is bigger the first, second and fourth planets. The first planet is smallest. It is much than the Earth.
