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 desk sitting against a wall that has a picture on it'. Count the number of vowels in the given sentence.
[A]: 17


[Q]: Sentence: 'several double-decker buses parked in an indoor lot'. Count the number of consonants in the given sentence.
[A]: 25


[Q]: Sentence: 'a group of people riding a subway train holding smart phones'. Count the number of vowels in the given sentence.
[A]:
19