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.

[EX Q]: Sentence: 'a gray teddy bear sitting behind an alarm clock'. Remove all words of length '6' in the given sentence.
[EX A]: a gray teddy bear sitting an alarm clock

[EX Q]: Sentence: 'a row of park benches sitting next to a park'. Remove all words of length '7' in the given sentence.
[EX A]: a row of park next to a park

[EX Q]: Sentence: 'a yellow sign on an empty open road'. Remove all words of length '6' in the given sentence.
[EX A]:
a sign on an empty open road

