TASK 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.
PROBLEM: Sentence: 'a cat sitting on papers on top of a keyboard'. Remove all words of length '1' in the given sentence.

SOLUTION: cat sitting on papers on top of keyboard

PROBLEM: Sentence: 'two sinks are shown next to a window which overlooks some airplanes'. Remove all words of length '9' in the given sentence.

SOLUTION: two sinks are shown next to a window which some

PROBLEM: Sentence: 'a fork and knife rest on slices of pizza with cans and a salad bowl behind them'. Remove all words of length '6' in the given sentence.

SOLUTION:
a fork and knife rest on of pizza with cans and a salad bowl them