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 couple cutting their wedding cake together with a knife in their hands'. Count the number of vowels in the given sentence.
23

Sentence: 'a large group of people on the street with some bikes'. Count the number of vowels in the given sentence.
18

Sentence: 'a man talking on his cell phone in the park'. Count the number of vowels in the given sentence.

12