"The pieces are too well known to ever have been kept a secret."

"We want to get the piece known by the public, no question about it," he said.

No piece of writing in his own hand is known to exist.

Only bits and pieces are known about those who lived in three of the houses.

However, many pieces are known for being edgy and provocative.

Today only some sixty or seventy pieces are known to survive.

The piece is known for its incredible speed and extremely high technical difficulty.

The piece was known to capture the true essence of his artistic expression.

The 1977 cent coin is extremely rare with 10 pieces known.

Over 200 pieces of software are known to exist for the MO5.