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.

[Q]: a gyu doing a trick with a green skateboard
[A]: gyu


[Q]: Looikng out a window at a yellow truck with signal written on it.
[A]: Looikng


[Q]: A lviing room with a sunny window, couch and a tv.
[A]:
lviing