What does this sentence mean?

Humanities is an academic field that studies human culture and society.

Workers of all countries, unite, let's show our power.

Kanna ran away.

He sharpens his sword every day.

He is an expert in computational linguistics and is involved in the development of artificial intelligence.

A nuclear submarine can travel underwater for a long time.

He is an expert in comparative linguistics.

Computational linguistics is the study of analyzing human language with computers.

I have been to Thuringia.