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

Example Input: Spatial sensors work in one, two, or _ dimensions.
Example Output: three

Example Input: Gravity is the weakest of all _ forces but unlike the others it has an unlimited range.
Example Output: four

Example Input: Golden eagles are large birds of prey with wingspans exceeding _ feet.
Example Output:
seven