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

Q: Sentence: 'a person is holding a chocolate doughnut with rainbow sprinkles'. Find frequency of the letter 's'

A: 4
****
Q: Sentence: 'a toilet filled with a brown liner and dirty water'. Find frequency of the letter 't'

A: 5
****
Q: Sentence: 'a man holding a frisby and sitting on the ground'. Find frequency of the letter 'g'

A:
3
****