In this task, you need to count the number of vowels (letters 'a', 'e', 'i', 'o', 'u') / consonants (all letters other than vowels) in the given sentence.
--------
Question: Sentence: 'there is a man standing on the train'. Count the number of consonants in the given sentence.

Answer: 18


Question: Sentence: 'a kite flying in the sky above a tree'. Count the number of consonants in the given sentence.

Answer: 17


Question: Sentence: 'there is a older man on a motorized chair riding on the grass'. Count the number of vowels in the given sentence.

Answer:
20