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 brock building on the corner of Tweede Looiersdwars Straat
[A]: brock


[Q]: A group of people riding on the backs of elephanst.
[A]: elephanst.


[Q]: A cta that is standing on a couch.
[A]:
cta