But he did not reveal the exact extent of Rockefeller's financial aid.

The exact extent of his control over the area is not well known.

The exact extent of these reserved rights are not clear.

The exact extent of even the most prominent ones remains unknown.

No one knew the exact extent of the threat to the currency.

What has been a major problem for the district so far is trying to determine the exact extent of the damage.

Security forces were reinforced by military after the exact extent was revealed.

But the exact extent of theft and waste is still not known.

Much remains unknown about the exact extent of its spread.

"We want to see the exact extent of the undercount in California."