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 bear rolling on his back on some logs'. Remove all words of length '2' in the given sentence.

SOLUTION: a bear rolling his back some logs

PROBLEM: Sentence: 'a boy looks excitedly at his birthday cake with his friend'. Remove all words of length '9' in the given sentence.

SOLUTION: a boy looks at his birthday cake with his friend

PROBLEM: Sentence: 'three dogs exploring a stream and rocks in nature'. Remove all words of length '4' in the given sentence.

SOLUTION:
three exploring a stream and rocks in nature