TASK DEFINITION: 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.
PROBLEM: Sentence: 'a large flock of birds flying over a field next to a  tree'. Remove all words of length '2' in the given sentence.

SOLUTION: a large flock birds flying over a field next a tree

PROBLEM: Sentence: 'a large passenger jet sitting on top of a runway'. Remove all words of length '3' in the given sentence.

SOLUTION: a large passenger sitting on of a runway

PROBLEM: Sentence: 'a man wearing a backpack in the living room'. Remove all words of length '2' in the given sentence.

SOLUTION:
a man wearing a backpack the living room