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: 'little boy stands atop the flatbed truck parked in the field'. Count the number of vowels in the given sentence.
16

Sentence: 'this picture shows a busy city crosswalk scene'. Count the number of consonants in the given sentence.
27

Sentence: 'a white horse looking out of a window of a barn'. Count the number of vowels in the given sentence.

17