The task is to read a passage and convert numbers in their text forms into digit forms. The text numbers can be used to represent Quantity, Dates and Time, Addresses or Positions.

Background and Possible Motives, Part three.
Background and Possible Motives, Part 3.

But no structural alterations were made from the date first quoted until the time of closing the prison in eighteen eighty one.
But no structural alterations were made from the date first quoted until the time of closing the prison in 1881.

On that occasion Oswald again used a bolt action twenty two caliber rifle; and according to Robert,
On that occasion Oswald again used a bolt action .22 caliber rifle; and according to Robert,