TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a baby elephant walks beside an adult elephant along a post and cable'. Find frequency of the letter 'l'

SOLUTION: 6

PROBLEM: Sentence: 'a person holding a wine glass in one hand and bread sticks in the other'. Find frequency of the letter 'd'

SOLUTION: 4

PROBLEM: Sentence: 'a handcarved wooden cuckoo clock with bears, on a wall'. Find frequency of the letter 'h'

SOLUTION:
2