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

Q: Sentence: 'a guy riding a bike close to a car in the street'. Find frequency of the letter 'i'

A: 4
****
Q: Sentence: 'a little child looking up to a camera holding a cell phone'. Find frequency of the letter 'g'

A: 2
****
Q: Sentence: 'two burger sandwiches on top of a table'. Find frequency of the letter 'e'

A:
3
****