He emphasized his belief by saying, 'I believe in order to understand.'

I don't know a thing about him.

That theory is unscientific and has no evidence at all.

My father is an expert in otolaryngology.

He is an expert in computer science.

The Ministry of Education is responsible for Japan's educational policy.

We should always remember the power of Kannon in difficult times.

He is the founder of this company.

He was known as a persecutor in that area.

We have to come up with a new strategy to beat our competitors.