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: 'this amtrak train is making its way down the tracks'. Remove all words of length '4' in the given sentence.

Ex Output:
amtrak train is making its way the tracks


Ex Input:
Sentence: 'several glasses of wine are seen on this table'. Remove all words of length '4' in the given sentence.

Ex Output:
several glasses of are on table


Ex Input:
Sentence: 'a couple of cakes are sitting on a table'. Remove all words of length '2' in the given sentence.

Ex Output:

a couple cakes are sitting a table