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 baby boy with a banana in his mouth'. Count the number of consonants in the given sentence.
17

Sentence: 'groups of people in a field sitting down, standing and walking, with tent areas in the background'. Count the number of vowels in the given sentence.
28

Sentence: 'two people sitting under the same umbrella'. Count the number of vowels in the given sentence.

14