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 street sign on the edge of a street'. Count the number of vowels in the given sentence.
[A]: 12


[Q]: Sentence: 'an old design kitchen with a long counter and brown appliances'. Count the number of vowels in the given sentence.
[A]: 18


[Q]: Sentence: 'a elephant and some birds in a zoo'. Count the number of consonants in the given sentence.
[A]:
15