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: 'a girl laying on a bed posing for a picture'. Find frequency of the letter 'i'
answer:
4


question:
Sentence: 'a street sign above sidewalk with trees and cones around'. Find frequency of the letter 'h'
answer:

1