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 guy sitting on his butt flying a kite'. Remove all words of length '4' in the given sentence.
a guy sitting on his flying a

Sentence: 'a woman relaxing feet up on a bench'. Remove all words of length '4' in the given sentence.
a woman relaxing up on a bench

Sentence: 'a cat sitting on a chair with its arm hanging down the back of it'. Remove all words of length '7' in the given sentence.

a cat on a chair with its arm down the back of it

