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: Igneous rock occurs in ____ ways .
Example Output: two

Example Input: Crustaceans have ____ pairs of antennae.
Example Output: two

Example Input: Poor children are ____ times more likely to die during their childhood than non-poor children.
Example Output:
three