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 group of vehicles move across an intersection'. Count the number of consonants in the given sentence.

SOLUTION: 23

PROBLEM: Sentence: 'some children's toys are sitting by a baby carriage'. Count the number of consonants in the given sentence.

SOLUTION: 27

PROBLEM: Sentence: 'the small child is playing in front of the refrigerator'. Count the number of vowels in the given sentence.

SOLUTION:
15