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

Q: Sentence: 'two laptop computers sitting on top of a white table'. Find frequency of the letter 'f'

A: 1
****
Q: Sentence: 'eight donuts are cooked together in oil in a metal tray'. Find frequency of the letter 'h'

A: 2
****
Q: Sentence: 'two pizzas on a pan in an oven'. Find frequency of the letter 'n'

A:
5
****