Far more species are known to exist in the area than the ones reported.

No other books are known to exist from this author after 2005.

As of 2001, it is known to exist in 21 countries.

The only model of this particular coach work known to exist.

At least 4 are known to exist but there was also a Set703.

Only one photograph of the species is known to exist.

It was power such as he had never known to exist.

Until recently, only a single photograph of him was known to exist.

Potential Resources are known to exist and may be used in the future.

There is at this time only one known to exist.