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

Example Input: Spanish mackerel are abundant and range up to _ pounds.
Example Output: five

Example Input: Many prosimians have at least _ nipples and produce litters rather than a single offspring.
Example Output: four

Example Input: Toucans adapt to their ecosystems by first finding the _ resources needed for survival.
Example Output:
four