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 pile of oranges sitting next to a pile of green apples'. Remove all words of length '6' in the given sentence.
Example Output: a pile of oranges sitting next to a pile of green

Example Input: Sentence: 'a person on some skis in the snow'. Remove all words of length '4' in the given sentence.
Example Output: a person on in the

Example Input: Sentence: 'man man setting up a network inside a business'. Remove all words of length '2' in the given sentence.
Example Output:
man man setting a network inside a business