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: 'black and white photograph of a park bench in woods'. Remove all words of length '3' in the given sentence.
Example Output: black white photograph of a park bench in woods

Example Input: Sentence: 'a laptop is seen in front of a large monitor'. Remove all words of length '2' in the given sentence.
Example Output: a laptop seen front a large monitor

Example Input: Sentence: 'a group of sheep rest in the grass under a tree'. Remove all words of length '2' in the given sentence.
Example Output:
a group sheep rest the grass under a tree