The Third International was a historically important organization.

I studied linear algebra at university.

Under the big tree, he was reading a book.

The leaf of this tea plant is vividly green, isn't it?

He dreams of becoming a champion in mixed martial arts.

He became the champion of the mixed martial arts competition.

He is the champion of the stone, paper, scissors game.

The single transferable vote is an important means to ensure the fairness of elections.

Demography is an important tool for understanding various aspects of society.

His efforts were like a mantis trying to stop a chariot, he couldn't achieve any results.