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 street sign and a traffic light in front of a building'. Count the number of consonants in the given sentence.
29

Sentence: 'a male skateboarder in a black and white shirt doing a trick'. Count the number of consonants in the given sentence.
30

Sentence: 'a group of people on a beach flying kites'. Count the number of consonants in the given sentence.

19