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.
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Question: Sentence: 'two guys talking on their cell phones while drinking'. Count the number of vowels in the given sentence.

Answer: 14


Question: Sentence: 'a desk sitting against a wall that has a picture on it'. Count the number of vowels in the given sentence.

Answer: 17


Question: Sentence: 'a couple of yellow and silver airplanes sitting on top of a field'. Count the number of vowels in the given sentence.

Answer:
22