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: and left for Irving with Marina Oswald and June and most of the Oswalds' effects three days later.
A: 
and left for Irving with Marina Oswald and June and most of the Oswalds' effects 3 days later.