There are two tatami rooms in my house.

This room is six tatami mats.

This room is covered with tatami, and it has a very Japanese atmosphere.

This room is six tatami mats in size.

The Triassic period is one of the geological ages, referring to the period from about 252 million years ago to about 251 million years ago.

At what point in Earth's history does the Triassic period fall?

Water training on the tatami is a traditional Japanese practice method.