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: 'cars are waiting for a train to pass in a city intersection'. Count the number of consonants in the given sentence.

Ex Output:
28


Ex Input:
Sentence: 'a clock stands on the curb of a busy street'. Count the number of vowels in the given sentence.

Ex Output:
11


Ex Input:
Sentence: 'people are walking around in a subway station'. Count the number of vowels in the given sentence.

Ex Output:

17