The given sentence contains a typo which could be one of the following four types: (1) swapped letters of a word e.g. 'niec' is a typo of the word 'nice'. (2) missing letter in a word e.g. 'nic' is a typo of the word 'nice'. (3) extra letter in a word e.g. 'nicce' is a typo of the word 'nice'. (4) replaced letter in a word e.g 'nicr' is a typo of the word 'nice'. You need to identify the typo in the given sentence. To do this, answer with the word containing the typo.

Input: Consider Input: An electronics case next to a microphone and with a cell phone on to.

Output: to.


Input: Consider Input: a vaat field full of weeds and dead grass

Output: vaat


Input: Consider Input: A herd of zebra standing next to a lush green tere.


Output: tere.