TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'two elephants facing each other touching trunks in an enclosure'. Find frequency of the letter 'f'

SOLUTION: 1

PROBLEM: Sentence: 'there is no image here to provide a caption for'. Find frequency of the letter 'o'

SOLUTION: 5

PROBLEM: Sentence: 'woman holding a toilet seat wearing a green shirt'. Find frequency of the letter 'e'

SOLUTION:
5