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.

Sentence: 'a woman on a tennis court is holding a racquet'. Count the number of vowels in the given sentence.
16

Sentence: 'a glass of guinness beer and a teddy bear on a table'. Count the number of vowels in the given sentence.
17

Sentence: 'flowers are landscaped to make a design of a clock'. Count the number of consonants in the given sentence.

25