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 young man with a snowboard while a crowd looks on'. Count the number of consonants in the given sentence.
25

Sentence: 'a man riding skis while holding two ski poles'. Count the number of consonants in the given sentence.
24

Sentence: 'a person walking down a street at night with an umbrella'. Count the number of consonants in the given sentence.

30