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 black bear sitting on top of a fallen log at a zoo'. Remove all words of length '7' in the given sentence.

Ex Output:
a black bear on top of a fallen log at a zoo


Ex Input:
Sentence: 'a toddler standing next to a sheep pen'. Remove all words of length '4' in the given sentence.

Ex Output:
a toddler standing to a sheep pen


Ex Input:
Sentence: 'residential bedroom area with ladder and stair near bed'. Remove all words of length '3' in the given sentence.

Ex Output:

residential bedroom area with ladder stair near