ONE is 3 letters long.
THREE is 5 letters long.
FIVE is 4 letters long.
FOUR is 4 letters long.
SEVEN s 5 letters long, so 7 is 5.
ONE is 3 letters long.
THREE is 5 letters long.
FIVE is 4 letters long.
FOUR is 4 letters long.
SEVEN s 5 letters long, so 7 is 5.