In this task, you need to reverse 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.
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Question: Sentence: 'a young teenage girl practicing skiing on small waves'. Reverse all words of length '2' in the given sentence.

Answer: a young teenage girl practicing skiing no small waves


Question: Sentence: 'people watching a music concert being performed on a stage'. Reverse all words of length '5' in the given sentence.

Answer: people watching a cisum concert gnieb performed on a egats


Question: Sentence: 'the base ball pitcher is pitching the ball'. Reverse all words of length '7' in the given sentence.

Answer:
the base ball rehctip is pitching the ball