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 large elephant and a small elephant standing in water'. Remove all words of length '1' in the given sentence.

Answer: large elephant and small elephant standing in water


Question: Sentence: 'a fire hydrant sits off a city street'. Remove all words of length '4' in the given sentence.

Answer: a hydrant off a street


Question: Sentence: 'a dog is standing in the water with a purple frisbee while another dog takes a drink'. Remove all words of length '7' in the given sentence.

Answer:
a dog is standing in the water with a purple while dog takes a drink