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 very nice looking train in the dark'. Remove all words of length '7' in the given sentence.
Example Output: a very nice train in the dark

Example Input: Sentence: 'little boy with a large tie holding a stuffed bear'. Remove all words of length '4' in the given sentence.
Example Output: little boy a large tie holding a stuffed

Example Input: Sentence: 'a baby sitting at a desk touching a laptop'. Remove all words of length '6' in the given sentence.
Example Output:
a baby sitting at a desk touching a