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

[EX Q]: Sentence: 'silhouette of person playing frisbee with moutain and sunset'. Find frequency of the letter 'i'
[EX A]: 5

[EX Q]: Sentence: 'a downhill skier with snow plumes behind them'. Find frequency of the letter 'i'
[EX A]: 4

[EX Q]: Sentence: 'a toilet bowl containing a pink rose stem'. Find frequency of the letter 'e'
[EX A]:
3