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: 'young boy flying kite in large field at outdoor event'. Find frequency of the letter 'y'
answer:
3


question:
Sentence: 'a snowboarder sits on the snow near a net'. Find frequency of the letter 'o'
answer:

4