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 brown dog greeting a lamb on a green field'. Count the number of vowels in the given sentence.

SOLUTION: 14

PROBLEM: Sentence: 'the professional player has broken the bat during a swing'. Count the number of vowels in the given sentence.

SOLUTION: 17

PROBLEM: Sentence: 'a room with a bed that is not made and a bathroom'. Count the number of vowels in the given sentence.

SOLUTION:
16