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.

[Q]: In the first series the firers required time spans of four point six, six point seven five,
[A]: In the first series the firers required time spans of 4.6, 6.75,

[Q]: Edited by Francis Rolt Wheeler. Biology. Chapter seven. Organic Functions. Part One.
[A]: Edited by Francis Rolt Wheeler. Biology. Chapter 7. Organic Functions. Part One.

[Q]: In England about this time, an attempt was made (notably by Caslon, who started business in London as a type founder in seventeen twenty)
[A]:
In England about this time, an attempt was made (notably by Caslon, who started business in London as a type founder in 1720)