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.

[EX Q]: An oeange is top of an assortment of green apples.
[EX A]: oeange

[EX Q]: Four giraffes walk across the savannah with trees in the backgroud.
[EX A]: backgroud.

[EX Q]: a licing room with a couch a table and desk
[EX A]:
licing