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 old building that has a big clock on top'. Remove all words of length '4' in the given sentence.

Ex Output:
a old building has a big clock on top


Ex Input:
Sentence: 'a woman relaxing feet up on a bench'. Remove all words of length '4' in the given sentence.

Ex Output:
a woman relaxing up on a bench


Ex Input:
Sentence: 'a person with skis on riding a ski lift'. Remove all words of length '1' in the given sentence.

Ex Output:

person with skis on riding ski lift