Tanzan is my best friend.

He is looking for something.

Every morning, when dawn breaks, I go for a walk.

Let's go up the stairs one step at a time.

He started a fire using coal.

His answer was short.

I am the type of person who consults with friends.

Carbon is one of the basic elements of life.

This ring is made of titanium.

Tungsten is a very hard metal that is resistant to high temperatures.