In this task, you need to count the number of times the given letter appears in the given sentence.

Q: Sentence: 'silhouette of person playing frisbee with moutain and sunset'. Find frequency of the letter 'i'

A: 5
****
Q: Sentence: 'a group of cows that are standing in the grass'. Find frequency of the letter 'g'

A: 3
****
Q: Sentence: 'there is a man standing in front of a banana peel'. Find frequency of the letter 'd'

A:
1
****