instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a double parking meter is decorated with a picture of a girl with wings on her feet'. Find frequency of the letter 'r'
answer:
6


question:
Sentence: 'there is no image here to provide a caption for'. Find frequency of the letter 'o'
answer:
5


question:
Sentence: 'a giraffe is standing in a grassy field'. Find frequency of the letter 'e'
answer:

2