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

[Q]: Sentence: 'an audience watches as a bird spreads its wings'. Find frequency of the letter 'd'
[A]: 3


[Q]: Sentence: 'a large formal living room with yellow couches and table'. Find frequency of the letter 'v'
[A]: 1


[Q]: Sentence: 'a gentleman is trying to pull off his skateboarding trick'. Find frequency of the letter 'i'
[A]:
5