We simulated the new software.

We are using software to simulate a new business model.

He is a devout believer, offering prayers every day.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

He likes repairing old locomotives.

The Paleogene period was a very important time in the history of the Earth.

I am planning to go to Inner Mongolia, an autonomous region of China, next week.

I have been to Outer Mongolia.

I have been to Chicago.

My new station wagon is very convenient.