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.

Ex Input:
Sentence: 'an office with file cabinets a keyboard and chairs'. Remove all words of length '4' in the given sentence.

Ex Output:
an office cabinets a keyboard and chairs


Ex Input:
Sentence: 'a mountain towers over a train going down the tracks'. Remove all words of length '4' in the given sentence.

Ex Output:
a mountain towers a train going the tracks


Ex Input:
Sentence: 'a red car driving down a street next to a traffic light'. Remove all words of length '1' in the given sentence.

Ex Output:

red car driving down street next to traffic light