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 number of benches at the beach and a boat in the sea'. Remove all words of length '7' in the given sentence.
[EX A]: a number of at the beach and a boat in the sea

[EX Q]: Sentence: 'a man prepares to serve a tennis ball during a match'. Remove all words of length '6' in the given sentence.
[EX A]: a man prepares to serve a ball a match

[EX Q]: Sentence: 'a group of zebras standing close together '. Remove all words of length '6' in the given sentence.
[EX A]:
a group of standing close together