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: 'a doughnut sitting next to a cup of coffee at restaurant'. Count the number of consonants in the given sentence.

Answer: 27


Question: Sentence: 'the sandwiches on the picnic blanket are cut in half'. Count the number of vowels in the given sentence.

Answer: 15


Question: Sentence: 'an old clock hanging on the wall next to a window'. Count the number of vowels in the given sentence.

Answer:
13