Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Sentence: 'a flat pizza with toppings served on a cutting board'. Count the number of consonants in the given sentence.
Student:
28