In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Example Input: Lightning can travel _ miles or more horizontally from the storm, then strike the ground.
Example Output: six

Example Input: Comets are a bit like giant dirty ice-balls with diameters between _ and fifty kilometres.
Example Output: five

Example Input: Exotic pheasants show a decline after about _ years.
Example Output:
four