Japan's exclusive economic zone plays a crucial role in the management and utilization of marine resources.

He believes that he has extrasensory perception.

In behavioral sciences, the use of metatools plays a crucial role.

He is writing a thesis on dialectical materialism.

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.

The Soviet Socialist Republics Union was a country that once existed.

The Czechoslovak Socialist Republic was once an existing country.

The People's Socialist Republic of Albania was once an existing country.

The Democratic Socialist Republic of Sri Lanka is located in South Asia.

The Socialist Federal Republic of Yugoslavia was a country that once existed.