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.

Example Input: A plte with a ham sandwich on white toast and a pickle spear
Example Output: plte

Example Input: A kitchen with stainless steel appliances and granite counter tos.
Example Output: tos.

Example Input: A peerson reaching for a frisbee flying through the air.
Example Output:
peerson