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

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

Question: Already, as early as eighteen eighteen, a prison existed at Bury St. Edmunds which was a model for imitation to others at that time,

Answer: Already, as early as 1818, a prison existed at Bury St. Edmunds which was a model for imitation to others at that time,

Question: showed the numerals twelve:thirty as the Vice Presidential automobile proceeded north on Houston Street, a few seconds before the shots were fired.

Answer:
showed the numerals 12:30 as the Vice Presidential automobile proceeded north on Houston Street, a few seconds before the shots were fired.