instruction:
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.
question:
Catas sleeping on top of a bed with blue and white striped blankets.
answer:
Catas


question:
Two street signs giving the names of the streest.
answer:
streest.


question:
a fiere truck and a car parked behind a gray fire hydrant
answer:

fiere