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: 'an open refrigerator filled with lots of food'. Count the number of consonants in the given sentence.
23

Sentence: 'a group of people are gathered around a running fire hydrant'. Count the number of consonants in the given sentence.
29

Sentence: 'man in black shirt and jeans doing a skateboard trick'. Count the number of consonants in the given sentence.

29