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: 'long passenger train rides along the elevated train tracks'. Remove all words of length '4' in the given sentence.

Ex Output:
passenger train rides along the elevated train tracks


Ex Input:
Sentence: 'a fire hydrant with an out of service sign and a dog in the background'. Remove all words of length '4' in the given sentence.

Ex Output:
a hydrant an out of service and a dog in the background


Ex Input:
Sentence: 'people are standing on a field with kites overhead'. Remove all words of length '8' in the given sentence.

Ex Output:

people are on a field with kites