A group of children play a scavenger hunt under a time limit of two hours. Points are given to the amount of items found, the type of item does not matter.

The points are allocated by:

 each for the first 5 items found and 2 points each for the next 5 items found (on the interval of items over 5 and up to 10)

each for the next 5 items found (on the interval of items over 10 and up to 15 items)

each for any other items found. (16 items +)

What would be a possible data definition for this case? (please comment out what you define your function name to be)