instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a woman holds some baked goods at the convention'. Find frequency of the letter 'd'
answer:
3


question:
Sentence: 'an orange cat sitting on the ground next to a  purse'. Find frequency of the letter 's'
answer:
2


question:
Sentence: 'a man is talking in front of a television'. Find frequency of the letter 'i'
answer:

5