My father was diagnosed with ankylosing spondylitis.

Bile salts play an important role in the digestion of fats.

He was infected with hepatitis E.

He is receiving treatment for hepatitis C.

Hepatitis D is a viral disease that is transmitted through blood.

He is an expert in ethology, and his research is highly regarded worldwide.

A new arbor was built in the park.

The sovereign is the ruler of that country.

He resisted the temptation.

I was watching the sunset while listening to the sound of the waves on the beach.