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.

Q: Sentence: 'a giraffe is leaning over and eating some leaves'. Remove all words of length '4' in the given sentence.

A: a giraffe is leaning and eating leaves
****
Q: Sentence: 'a man walking down a street while talking on a cell phone'. Remove all words of length '3' in the given sentence.

A: a walking down a street while talking on a cell phone
****
Q: Sentence: 'a woman crossing a street at a crosswalk while holding an umbrella'. Remove all words of length '2' in the given sentence.

A:
a woman crossing a street a crosswalk while holding umbrella
****