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.

Sentence: 'a photo of a train on a bridge above a river'. Count the number of vowels in the given sentence.
17

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

Sentence: 'a couple of cows walking beside a brick wall'. Count the number of consonants in the given sentence.

22