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 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 pitcher releases the ball on the mound'. Remove all words of length '7' in the given sentence.
[A]: a releases the ball on the mound


[Q]: Sentence: 'a blue and white ship some water a hill and trees'. Remove all words of length '3' in the given sentence.
[A]:
a blue white ship some water a hill trees