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.

Input: Consider Input: Sentence: 'a group of men riding skis down a snow covered slope'. Remove all words of length '6' in the given sentence.

Output: a group of men skis down a snow covered slope


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

Output: amtrak train is making its way the tracks


Input: Consider Input: Sentence: 'a ship is parked next to a big hotel'. Remove all words of length '2' in the given sentence.


Output: a ship parked next a big hotel