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: 'there are three different lights that show if u can walk'. Count the number of vowels in the given sentence.
16

Sentence: 'a desktop computer that is sitting on a desk'. Count the number of consonants in the given sentence.
23

Sentence: 'a couple of green highway signs sitting above a highway'. Count the number of vowels in the given sentence.

18