He received an official notice.

We achieved our goal and achieved success.

This chemical reacts when heat is added.

This chemical reaction is very dangerous.

The reconfiguration of the computer system is necessary.

They called for a boycott in opposition to the inappropriate actions of the company.

They called for a boycott of the product.

Everest is the highest peak in the world.

The Supreme Court issued a verdict on the case.

This system needs reconfiguration.