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 baseball team meets at the pitcher's mound to talk'. Count the number of consonants in the given sentence.

Ex Output:
26


Ex Input:
Sentence: 'two men are standing next to a brownish black elephant'. Count the number of vowels in the given sentence.

Ex Output:
15


Ex Input:
Sentence: 'a stop sign written in chinese and in english'. Count the number of vowels in the given sentence.

Ex Output:

13