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: 'many people on some grass and some are flying kites'. Count the number of consonants in the given sentence.

Ex Output:
26


Ex Input:
Sentence: 'a herd of sheep are walking up a muddy hill next to a parked minivan'. Count the number of vowels in the given sentence.

Ex Output:
21


Ex Input:
Sentence: 'two motorcycles with a man sitting on one and a man standing next to him while they shake hands'. Count the number of vowels in the given sentence.

Ex Output:

26