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: 'a large passenger jet sitting on top of a runway'. Remove all words of length '3' in the given sentence.

Ex Output:
a large passenger sitting on of a runway


Ex Input:
Sentence: 'some people are sitting and playing wii in a family room'. Remove all words of length '3' in the given sentence.

Ex Output:
some people sitting playing in a family room


Ex Input:
Sentence: 'steamboat on a river in front of a mountain'. Remove all words of length '2' in the given sentence.

Ex Output:

steamboat a river front a mountain