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: 'pedestrians pass by a stop sign, some holding surfboards'. Count the number of vowels in the given sentence.
15

Sentence: 'three video games sitting along side a refrigerator'. Count the number of consonants in the given sentence.
25

Sentence: 'a boy who is in the process of eating a sandwich'. Count the number of consonants in the given sentence.

23