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 dog laying in the grass chewing a stick'. Remove all words of length '6' in the given sentence.

Answer: a dog in the grass chewing a stick


Question: Sentence: 'a group of cows standing near a barbed wire fence'. Remove all words of length '1' in the given sentence.

Answer: group of cows standing near barbed wire fence


Question: Sentence: 'a train engine and passenger cars are on the tracks'. Remove all words of length '4' in the given sentence.

Answer:
a train engine and passenger are on the tracks