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.
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Question: Sentence: 'a stack of donuts sitting on a piece of paper'. Remove all words of length '7' in the given sentence.

Answer: a stack of donuts on a piece of paper


Question: Sentence: 'a diner cutting a piece of chicken on a plate'. Remove all words of length '1' in the given sentence.

Answer: diner cutting piece of chicken on plate


Question: Sentence: 'there is building which looks like a prison on this island'. Remove all words of length '4' in the given sentence.

Answer:
there is building which looks a prison on island