He is active as a member of an international think tank.

He is a specialist fool, with no interest in anything outside his field.

He couldn't say anything about issues outside of his field of expertise.

There are many different specialty stores in this town.

It is said that this area used to be a mass grave.

In that village, mass hysteria occurred due to rumors of a spreading unknown disease.

He claims to be a victim of gangstalking.

The doctor said his illness is genetic.

He needs special care because of his inherited disease.

His red hair is thought to be an atavism.