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: 'a man and a woman with smiles behind tennis racquets'. Count the number of vowels in the given sentence.

Ex Output:
16


Ex Input:
Sentence: 'this picture shows a busy city crosswalk scene'. Count the number of consonants in the given sentence.

Ex Output:
27


Ex Input:
Sentence: 'a train on the railroad track at a station in the city'. Count the number of consonants in the given sentence.

Ex Output:

25