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.

Input: Consider Input: Sentence: 'an orange suitcase with an advertisement on it sets on a pier'. Count the number of consonants in the given sentence.

Output: 28


Input: Consider Input: Sentence: 'a cow crosses a stream while sun rays shine down on the water'. Count the number of vowels in the given sentence.

Output: 18


Input: Consider Input: Sentence: 'two polar bears are standing by a slide'. Count the number of vowels in the given sentence.


Output: 12