He was born as an illegitimate child and experienced many difficulties.

My grandfather used to till his privately-owned rice field.

He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

A sea otter is a very cute animal that lives in the sea.

In the old days, people were moved by the strength and beauty of the sea lion.

A sea lion is a type of marine animal, and it is very rare.

The sea otter is a rare animal, and its ecology is not well known.

The sea otter is a very rare animal.

The Irish Sea separates the UK and Ireland.