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

Q: Sentence: 'a picture of two men on a motorcycle in front of a railroad track'. Find frequency of the letter 'n'

A: 4
****
Q: Sentence: 'two metal  benches on an empty train platform'. Find frequency of the letter 'n'

A: 4
****
Q: Sentence: 'hands hold two parts of a video game controller'. Find frequency of the letter 'o'

A:
6
****