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: addressed him, insisting that he should forthwith sign a cheque for the eight hundred pounds of the Canning inheritance still uninvested,
Output:
addressed him, insisting that he should forthwith sign a cheque for the 800 of the Canning inheritance still uninvested,