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.

Let me give you an example: Jacob ate three burgers today.
The answer to this example can be: Jacob ate 3 burgers today.
Here is why: The number in text form three is converted into the number in digit form 3.

OK. solve this:
After leaving the Depository Building at approximately twelve:thirty three p.m., Lee Harvey Oswald proceeded to his roominghouse by bus and taxi.
Answer:
After leaving the Depository Building at approximately 12:33 p.m., Lee Harvey Oswald proceeded to his roominghouse by bus and taxi.