instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a fluffy white car looking in a mirror'. Find frequency of the letter 'k'
answer:
1


question:
Sentence: 'a piece of bread stuffed with meat and vegetables'. Find frequency of the letter 's'
answer:
2


question:
Sentence: 'a group photo of a tennis team and the coach'. Find frequency of the letter 'g'
answer:

1