Definition: 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.
Input: Sentence: 'at a beach on a sunny cloudless day dozens of colorful kites fly in the air'. Remove all words of length '5' in the given sentence.

at a on a cloudless day dozens of colorful fly in the air