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: 'hotel with arched doorway and cat sleeping on step'. Remove all words of length '4' in the given sentence.

SOLUTION: hotel arched doorway and cat sleeping on

PROBLEM: Sentence: 'a small child with a helmet is on skis'. Remove all words of length '2' in the given sentence.

SOLUTION: a small child with a helmet skis

PROBLEM: Sentence: 'a person in  a park petting a horse'. Remove all words of length '4' in the given sentence.

SOLUTION:
a person in a petting a horse