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

Q: Sentence: 'two little girls playing with a bat and a tennis ball'. Find frequency of the letter 'w'

A: 2
****
Q: Sentence: 'a man working on a small laptop on a wooden table'. Find frequency of the letter 'l'

A: 4
****
Q: Sentence: 'a somewhat blurry image of a couple of sinks below the mirror'. Find frequency of the letter 'i'

A:
3
****