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.

[EX Q]: Sentence: 'a bus is stopped while three people are crossing'. Remove all words of length '1' in the given sentence.
[EX A]: bus is stopped while three people are crossing

[EX Q]: Sentence: 'a person sitting at a desk by an open laptop'. Remove all words of length '4' in the given sentence.
[EX A]: a person sitting at a by an laptop

[EX Q]: Sentence: 'three cookies are seen in an open box'. Remove all words of length '5' in the given sentence.
[EX A]:
cookies are seen in an open box