The phrase "classified about" is correct and usable in written English.
It can used to indicate that something has been organized according to category or type. For example, "The library's archives are classified about according to subject."
Russia's Education Ministry has classified about 750,000 children today as orphans.
The Associated Press reported that Clinton received information on her private email server that had now been classified about the deadly attack on Benghazi.
Boeing said it classified about 2,000 events each year as "reportable" to regulators, equivalent to 1 to 2 percent of all occurrences.
If Mr Bush does not try to sidestep the Senate by installing Mr Bolton temporarily, he could withdraw the nomination or authorise further concessions to Democrats who are demanding access to information, some of it classified, about Mr Bolton before they stop stalling.
The models generated correctly classified about 70% of the validation data set.
The final index was validated with 192 withheld watersheds and correctly classified about two-thirds (68%) of least- and most-disturbed sites.
Of more than 88,000 American servicemen missing in 20th-century conflicts, some 79,000 are casualties of World War II, and though many of them were forever lost at sea, the government classifies about 35,000 as recoverable.
The government classifies about half of the substandard homes as shacks or shanties.
That technique, called immunostaining, can classify about two-thirds of tumors that would have been considered unknown primaries about 30 years ago, Dr. Weiss said.
Early last year the library started classifying about 600 titles by Scottish writers as "English literature," with subheadings like "Scottish authors" or "Scottish poets".
The bank classifies about 19 percent of its residential mortgage loans as either delinquent or nonperforming, a number similar to that of Bank of America.
