In this task, you need to remove all words of a given length in the sentence. The number of letters in a word determine its length, for example, the length of the word "apple" is 5.

[Q]: Sentence: 'a small boy sitting on the grass with a suitcase'. Remove all words of length '4' in the given sentence.
[A]: a small boy sitting on the grass a suitcase


[Q]: Sentence: 'two giraffes standing next to each other next to trees'. Remove all words of length '4' in the given sentence.
[A]: two giraffes standing to other to trees


[Q]: Sentence: 'a row of cows in a barn with one lying down'. Remove all words of length '5' in the given sentence.
[A]:
a row of cows in a barn with one down