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: 'two birds sitting on a large rock next to a river'. Remove all words of length '5' in the given sentence.
Example Output: two sitting on a rock next to a

Example Input: Sentence: 'there are people flying kites high in the sky'. Remove all words of length '4' in the given sentence.
Example Output: there are people flying kites in the sky

Example Input: Sentence: 'a mother instructs her daughter how to put sauce on a pizza'. Remove all words of length '1' in the given sentence.
Example Output:
mother instructs her daughter how to put sauce on pizza