Japan was forced to open the country to foreigners in 1853 due to the arrival of Commodore Perry.

Real analysis is a branch of mathematics that studies the properties of real numbers and the functions on them.

It is said that a monster lives in the forest.

We are working on the development of new software.

We are planning to develop the resources of this area.

He enlisted in the navy.

We decided to rename the company.

He decided to change the name of his company.

He had a dream of becoming a pirate.

The grebe is a beautiful bird that lives by the water.