When my stomach hurts, I always take an antacid.

The United Kingdom is a constitutional monarchy.

Her family adopts a matriarchy.

Oligarchy is a political system where a few powerful people rule the country.

My company has introduced a layoff system.

He is doing special exercises to strengthen his depressor muscle.

Primitive communism is one of the initial forms of human social organization.

The system of provinces was a part of the ancient political system in Japan.

The National People's Congress is the highest legislative body in China.

He won in the gutter election.