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

[Q]: Sentence: 'a room with a big screen television and a couch'. Find frequency of the letter 'h'
[A]: 2


[Q]: Sentence: 'a blue bowl holding mashed bananas and oatmeal with a bottle of sugar and cinnamon sitting beside it'. Find frequency of the letter 'g'
[A]: 3


[Q]: Sentence: 'a pulley is seen in a room with lots of stuff on shelves'. Find frequency of the letter 'f'
[A]:
3