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.

Example Input: Sentence: 'business signs hanging over sidewalk in city area'. Remove all words of length '4' in the given sentence.
Example Output: business signs hanging sidewalk in

Example Input: Sentence: 'a guy in a brown shirt has just hit a tennis ball'. Remove all words of length '3' in the given sentence.
Example Output: a in a brown shirt just a tennis ball

Example Input: Sentence: 'an empty kitchen with black counter tops'. Remove all words of length '5' in the given sentence.
Example Output:
an kitchen with counter tops