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.

Sentence: 'a woman prepares to serve the tennis ball'. Remove all words of length '1' in the given sentence.
woman prepares to serve the tennis ball

Sentence: 'a sail boat riding through the water while an airplane takes off in the background'. Remove all words of length '2' in the given sentence.
a sail boat riding through the water while airplane takes off the background

Sentence: 'the boat makes a big splash in the water'. Remove all words of length '4' in the given sentence.

the makes a big splash in the water