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.

All his stories are thought to be lies.

He is trying to mend his relationship with his ex-wife.

He wrote the original plan for this movie.

This book is in 10 volumes.