instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'the child is waving a small flag as she stands near two women'. Find frequency of the letter 'g'
answer:
2


question:
Sentence: 'a red fire hydrant opened and spilling water'. Find frequency of the letter 'd'
answer:
4


question:
Sentence: 'a cat standing in a chair looking at the camera'. Find frequency of the letter 'a'
answer:

8