Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

Example Input: Exposure can occur in ____ general ways, ingestion, skin contact and inhalation.
Example Output: three

Example Input: Most dens are oval shape, six to nine feet long and about ____ feet in height and width.
Example Output: six

Example Input: Gigabit ethernet uses ____ wires for transmission.
Example Output:
four