TASK 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.
PROBLEM: and a pickup from Greyhound (bus station) at twelve:thirty p.m.,

SOLUTION: and a pickup from Greyhound (bus station) at 12:30 p.m.,

PROBLEM: Tippit's murder was recorded on the police radio tape at about one:sixteen p.m.

SOLUTION: Tippit's murder was recorded on the police radio tape at about 1:16 p.m.

PROBLEM: The Commission has evaluated the evidence tending to show how Lee Harvey Oswald's Mannlicher Carcano rifle, serial number C two seven six six,

SOLUTION:
The Commission has evaluated the evidence tending to show how Lee Harvey Oswald's Mannlicher Carcano rifle, serial number C2766,