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

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

Ex Output:
five

Ex Input:
Most chick mortality occurs within _ days after hatching.

Ex Output:
six

Ex Input:
Human death can occur within _ hours after the bite.

Ex Output:
six