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 small boy sitting on the grass with a suitcase'. Remove all words of length '4' in the given sentence.
[EX A]: a small boy sitting on the grass a suitcase

[EX Q]: Sentence: 'a mountain towers over a train going down the tracks'. Remove all words of length '4' in the given sentence.
[EX A]: a mountain towers a train going the tracks

[EX Q]: Sentence: 'a shaggy dog walks on the grass in front of a swing set'. Remove all words of length '6' in the given sentence.
[EX A]:
a dog walks on the grass in front of a swing set