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: 'three black cows standing next to each other on a field'. Count the number of vowels in the given sentence.
16

Sentence: 'some boys are wearing green and red vests and ties'. Count the number of vowels in the given sentence.
16

Sentence: 'a close up of a person wearing a shirt and tie'. Count the number of consonants in the given sentence.

20