Madagascar is a country rich in nature.

She loves murder mysteries and plays them with her friends almost every week.

This is part of my collection, especially the Arabian cowry is rare.

The effect of this medicine is very powerful.

This contract takes effect from the date of signature.

The efficiency of this machine is very high.

This contract has become invalid.

This contract has become invalid.

The depressed cowry lives quietly at the bottom of the sea.

My dog dislikes taking medicine with food.