Definition: 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.
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.

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