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.

Example Input: Sentence: 'woman holds a toothbrush to the mouth of a young child'. Count the number of vowels in the given sentence.
Example Output: 16

Example Input: Sentence: 'a miniature of trays of decorated donuts on a counter'. Count the number of consonants in the given sentence.
Example Output: 24

Example Input: Sentence: 'an old photo of a car parked on the beach with a flag flying'. Count the number of vowels in the given sentence.
Example Output:
17