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 is a lot of cars parked along side the curb'. Count the number of vowels in the given sentence.
15

Sentence: 'a teddy bear that is sitting on a tree branch'. Count the number of consonants in the given sentence.
23

Sentence: 'birds perched on the bank of a frozen stream'. Count the number of vowels in the given sentence.

12