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 giaffe feeds from a feeder mounted in the leaves.
Example Output: giaffe

Example Input: Shepe grazing on a grass covered field side by side.
Example Output: Shepe

Example Input: Yelkow train engine and cars coming around a curve.
Example Output:
Yelkow