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.

Input: Consider Input: Cognitive therapy is a time-limited treatment lasting ____ to four months.

Output: three


Input: Consider Input: Igneous rock occurs in ____ ways .

Output: two


Input: Consider Input: ABA is an is a terpenoid and contains ____ isoprene units.


Output: three