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 red and white jet on a runway and brown grass'. Remove all words of length '6' in the given sentence.

SOLUTION: a red and white jet on a and brown grass

PROBLEM: Sentence: 'a man is crouched down by a big elephant'. Remove all words of length '3' in the given sentence.

SOLUTION: a is crouched down by a elephant

PROBLEM: Sentence: 'a man is holding onto a cup of coffee that sits in front of a keyboard'. Remove all words of length '1' in the given sentence.

SOLUTION:
man is holding onto cup of coffee that sits in front of keyboard