He was hospitalized because of heart failure.

His memory is like an elephant's.

In old Japan, elephants were considered very rare animals.

His work is considered a symbol of peace.

The teaching of this unit is very important.

He decided to travel to the ends of the earth.

And then, he proposed to her.

He was talking as if he knew it.

I am single and live alone.

My father had to move away from his family for work.