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 person sitting at a desk by an open laptop'. Remove all words of length '4' in the given sentence.
Example Output: a person sitting at a by an laptop

Example Input: Sentence: 'a cake that is cut in pieces while sitting on a plate beside a fork'. Remove all words of length '1' in the given sentence.
Example Output: cake that is cut in pieces while sitting on plate beside fork

Example Input: Sentence: 'a topless child holding a bird in a forest'. Remove all words of length '4' in the given sentence.
Example Output:
a topless child holding a in a forest