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 standing underneath an open umbrella reading a magazine'. Remove all words of length '8' in the given sentence.
Example Output: a woman underneath an open reading a

Example Input: Sentence: 'a man getting some food in an army uniform'. Remove all words of length '4' in the given sentence.
Example Output: a man getting in an uniform

Example Input: Sentence: 'two horses with blanket walking on field with board'. Remove all words of length '6' in the given sentence.
Example Output:
two with blanket walking on field with board