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 colorful stuffed bear sits on a purple outdoor bench'. Remove all words of length '4' in the given sentence.

Ex Output:
a colorful stuffed on a purple outdoor bench


Ex Input:
Sentence: 'a green city bus driving thru a parking area'. Remove all words of length '4' in the given sentence.

Ex Output:
a green bus driving a parking


Ex Input:
Sentence: 'a guy is pitching a girl a baseball on the beach and she is preparing to hit it as someone else looks on'. Remove all words of length '3' in the given sentence.

Ex Output:

a is pitching a girl a baseball on beach is preparing to it as someone else looks on