This world was one of the rare ones that had given rise to life.

He is one of the rare ones who comes along.

He wanted the butterflies close by especially the rare ones.

I'm simply one of the rare ones who knows the difference.

That makes the rare ones more difficult to find, but they aren't the main thing anyway.

He was one of those rare ones who took his job seriously, but not himself.

One of the rare ones I play through a second time.

About 120 of the local plant species are rare ones which have received special protection status.

Up to 10,000 items in 50 categories will be available, including several rare and unusual ones.

"I am one of the rare ones that can play at this level," she said.