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: 'a street sign and a traffic light in front of a building'. Count the number of consonants in the given sentence.

SOLUTION: 29

PROBLEM: Sentence: 'some kids near a pizza topped with greens'. Count the number of vowels in the given sentence.

SOLUTION: 13

PROBLEM: Sentence: 'a herd of zebras running over rocky terrain'. Count the number of vowels in the given sentence.

SOLUTION:
13