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 person riding a surf board in a body of water'. Remove all words of length '6' in the given sentence.

A: a a surf board in a body of water
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Q: Sentence: 'a man is in a grassy field with animals'. Remove all words of length '7' in the given sentence.

A: a man is in a grassy field with
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Q: Sentence: 'a grey tabby cat stretches out on some clothes'. Remove all words of length '5' in the given sentence.

A:
a grey cat stretches out on some clothes
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