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 truck pulling a trailer in a dirt field'. Remove all words of length '2' in the given sentence.

Ex Output:
a truck pulling a trailer a dirt field


Ex Input:
Sentence: 'green white and red airplane parked at an airport'. Remove all words of length '7' in the given sentence.

Ex Output:
green white and red airplane parked at an


Ex Input:
Sentence: 'an old red colored bus with union jack flags on it'. Remove all words of length '4' in the given sentence.

Ex Output:

an old red colored bus union flags on it