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 woman surfing while a man looks on behind her'. Remove all words of length '1' in the given sentence.
Example Output: woman surfing while man looks on behind her

Example Input: Sentence: 'a woman relaxing feet up on a bench'. Remove all words of length '4' in the given sentence.
Example Output: a woman relaxing up on a bench

Example Input: Sentence: 'several plates with snacks and sandwiches in a display'. Remove all words of length '4' in the given sentence.
Example Output:
several plates snacks and sandwiches in a display