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 crew of people looking at an airplane'. Count the number of vowels in the given sentence.

A: 15
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Q: Sentence: 'two giraffe and two gazelle in dry vegetation'. Count the number of consonants in the given sentence.

A: 23
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Q: Sentence: 'some street signs with graffit on them'. Count the number of vowels in the given sentence.

A:
10
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