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

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


[Q]: Sentence: 'a scene at night; a plane alone on a runway with lit-up city buildings on the horizon'. Find frequency of the letter 'w'
[A]: 2


[Q]: Sentence: 'a banana, a muffin and a cup sit on a table in an outside seating area with purple and white furniture'. Find frequency of the letter 'o'
[A]:
2