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.

Example Input: Sentence: 'a little girl with a baseball glove next to an older woman'. Remove all words of length '4' in the given sentence.
Example Output: a little a baseball glove to an older woman

Example Input: Sentence: 'two older men are playing with a frisbee at the park'. Remove all words of length '4' in the given sentence.
Example Output: two older men are playing a frisbee at the

Example Input: Sentence: 'a small flock of seagulls looking for food on the beach'. Remove all words of length '3' in the given sentence.
Example Output:
a small flock of seagulls looking food on beach