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: Teething begins for most babies around ____ to six months.

Output: four


Input: Consider Input: Arthritis is characterised by ____ major observable changes in the joints.

Output: four


Input: Consider Input: Spotted hyenas are the largest of ____ hyena species.


Output: three