Definition: 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: Representatives of the local host committee and the White House staff were advised by the Secret Service of the actual route on the afternoon of November eighteen.
Output:
Representatives of the local host committee and the White House staff were advised by the Secret Service of the actual route on the afternoon of November 18.