TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a bird is perched on a container in a person's hand'. Find frequency of the letter 'c'

SOLUTION: 2

PROBLEM: Sentence: 'a person on a sidewalk jumping with an umbrella'. Find frequency of the letter 'a'

SOLUTION: 5

PROBLEM: Sentence: 'a white plate topped with noodles and veggies'. Find frequency of the letter 'g'

SOLUTION:
2