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 small plane sits at the end of a small runway'. Count the number of vowels in the given sentence.
13

Sentence: 'a display of dozens of neck ties in many colors'. Count the number of consonants in the given sentence.
24

Sentence: 'people walk on the street behind a double decker bus'. Count the number of consonants in the given sentence.

26