TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'eight donuts are cooked together in oil in a metal tray'. Find frequency of the letter 'h'

SOLUTION: 2

PROBLEM: Sentence: 'a woman holds some baked goods at the convention'. Find frequency of the letter 'd'

SOLUTION: 3

PROBLEM: Sentence: 'statues of 2 zebras and 1 giraffe in a doorway'. Find frequency of the letter 'a'

SOLUTION:
6