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 person on a court with a tennis racket'. Remove all words of length '6' in the given sentence.
a on a court with a

Sentence: 'a dog that is laying down on a blanket'. Remove all words of length '4' in the given sentence.
a dog is laying on a blanket

Sentence: 'a couple of giraffe standing next to each other'. Remove all words of length '5' in the given sentence.

a couple of giraffe standing next to each