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: Within a couple of years the number of persons sentenced to death in England had fallen from four hundred and thirty eight in eighteen thirty seven

Answer: Within a couple of years the number of persons sentenced to death in England had fallen from four hundred and thirty eight in 1837

Question: (three) firearm identification of the bullet found in Walker's home, and (four)

Answer: (3) firearm identification of the bullet found in Walker's home, and (4)

Question: Mr. Mullay called again, taking with him five hundred pounds in cash. Howard discovered this, and his manner was very suspicious;

Answer:
Mr. Mullay called again, taking with him 500 in cash. Howard discovered this, and his manner was very suspicious;