He is enjoying the performance of kudara-gaku.

He is an expert in osteology.

He loves mountains and goes climbing every year.

We conducted a spectral analysis to investigate the spectral characteristics of this substance.

The artificial satellite is orbiting around the earth.

That theory is unscientific and has no evidence at all.

He is an expert in computer science.

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

I gave her a birthday gift.

I love stir-fried pork.