instruction:
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.
question:
Sentence: 'some boys are wearing green and red vests and ties'. Count the number of vowels in the given sentence.
answer:
16


question:
Sentence: 'a double-decker red bus on a london street'. Count the number of vowels in the given sentence.
answer:
14


question:
Sentence: 'an old, burnt-out stove and oven on the street'. Count the number of vowels in the given sentence.
answer:

14