This coffee contains sweetener.

He is passionate about his research in futurology.

He is interested in the study of futurology.

Earthquakes, thunder, fires, and fathers are what people fear the most.

The bat-eared fox is known primarily for eating insects.

The population density of this area is very high.

A muon is a type of elementary particle that carries a negative charge, just like an electron.

Tokyo is the city with the highest population density in Japan.

His jokes always have a double entendre, which is interesting.

He ordered spaghetti with meatballs.