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: '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: 'a woman cuts a piece of cake while holding a little girl'. Remove all words of length '2' in the given sentence.
Example Output: a woman cuts a piece cake while holding a little girl

Example Input: Sentence: 'a couple of airplanes sitting outside of a building'. Remove all words of length '1' in the given sentence.
Example Output:
couple of airplanes sitting outside of building