Instructions: 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.
Input: As he issued his instructions to Greer and to the lead car, Kellerman heard a flurry of shots within five seconds of the first noise.
Output:
As he issued his instructions to Greer and to the lead car, Kellerman heard a flurry of shots within 5 seconds of the first noise.