instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a glass vase sits between two statues'. Find frequency of the letter 'o'
answer:
1

question:
Sentence: 'a man in a black wet suit rides an orange surfboard on the water'. Find frequency of the letter 'o'
answer:
3

question:
Sentence: 'the green fire hydrant is sitting on the side of the street'. Find frequency of the letter 't'
answer:
8