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.

Q: Sentence: 'a cat that is sleeping on a chair'. Count the number of consonants in the given sentence.

A: 15
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Q: Sentence: 'a big pile of pizzas that are in pans'. Count the number of vowels in the given sentence.

A: 12
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Q: Sentence: 'a cow crosses a stream while sun rays shine down on the water'. Count the number of vowels in the given sentence.

A:
18
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