This is a rare achievement for a dance/house album in the United States.
He was awarded all three special prizes on offer; a rare achievement.
"Peace for the region would be a rare achievement."
The school was that rare achievement - a family within an institution.
Although more common since then, it remains one of the most rare single-game achievements.
But producing one when you need it is a rare achievement.
There he earned his civilian pilots license, which was a rare achievement for a black man at the time.
This is a rare achievement in that an artist or group has won another award for the same album the following year.
This was a rare achievement for a man of his background at that time.
It was a rare achievement to have been honoured by both the governments.