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: 'groups of people in a field sitting down, standing and walking, with tent areas in the background'. Count the number of vowels in the given sentence.

Ex Output:
28


Ex Input:
Sentence: 'dog with collar next to open window in front of building'. Count the number of consonants in the given sentence.

Ex Output:
30


Ex Input:
Sentence: 'there are three giraffes and a goat inside the wire fence'. Count the number of vowels in the given sentence.

Ex Output:

21