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

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

The space complexity of this algorithm is O(n).

I made a small robot with my new 3D printer.

I enjoyed sandboarding at the sandboarding dome.

He started a business without a plan, forgetting the lesson of 'peach and chestnut seeds take three years to bear fruit, persimmons eight years.'

I maintain my health by doing aerobic exercises every day.

Whenever he faced a difficult situation, he always said, 'The best of the Thirty-Six Stratagems is to run away.'

He warned the young people, saying 'At thirty, one should not be careless, at forty, one should not be indecisive.'

Please tell me the International Standard Book Number of this book.