TASK DEFINITION: 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.
PROBLEM: Sentence: 'several horse riders are along the ocean shore'. Count the number of consonants in the given sentence.

SOLUTION: 22

PROBLEM: Sentence: 'a woman walking past a fence with animals on it'. Count the number of vowels in the given sentence.

SOLUTION: 15

PROBLEM: Sentence: 'a brown puppy sitting in grassy area with a white frisbee'. Count the number of vowels in the given sentence.

SOLUTION:
17