The function returns the number of occurrences of the letter 'e' in the input string spelled out in words.

[CODE]:
```python
def f(x):
    count = x.count('e')
    spelled_out_counts = {1: "one", 2: "two", 3: "three", 4: "four", 5: "five"}
    return spelled_out_counts.get(count, "none")
```