His story was not so interesting.

He was so tired that he fell asleep immediately.

When I raised my voice in the library, my friend said, 'Shh.'

The 600-cell is one of the regular polytopes in four dimensions.

Please don't leave the door open.

He has three new cars in total.

This book is easy to read because the print is large.

There are many chambers in this castle.

There is a large fire wall in front of the fire department.

Linear programming is a part of operations research and is used to find the optimal solution.