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.

Sentence: 'a man sleeping in bed with a cat lying on him'. Remove all words of length '5' in the given sentence.
a man sleeping in bed with a cat on him

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

Sentence: 'a man catches a frisbe under his leg'. Remove all words of length '3' in the given sentence.

a catches a frisbe under

