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: 'an empty airport lobby with a tv and yellow chairs'. Count the number of vowels in the given sentence.
[A]: 13


[Q]: Sentence: 'a tourist attraction of a clock tower with a flag flying'. Count the number of vowels in the given sentence.
[A]: 17


[Q]: Sentence: 'a hot dog on a bun with mustard'. Count the number of vowels in the given sentence.
[A]:
9