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.

Ex Input:
Sentence: 'some children's toys are sitting by a baby carriage'. Count the number of consonants in the given sentence.

Ex Output:
27


Ex Input:
Sentence: 'a boy stares at a pizza with a birthday candle in it'. Count the number of vowels in the given sentence.

Ex Output:
16


Ex Input:
Sentence: 'a street with traffic lights and signs next to buildings at night'. Count the number of vowels in the given sentence.

Ex Output:

16