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

Q: Sentence: 'young boy flying kite in large field at outdoor event'. Find frequency of the letter 'y'

A: 3
****
Q: Sentence: 'a white toilet sitting next to a bathroom sink'. Find frequency of the letter 'b'

A: 1
****
Q: Sentence: 'extreme closeup of sneaker on someone's foot on a beach'. Find frequency of the letter 'c'

A:
2
****