instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'the interior of a living and dining room'. Find frequency of the letter 'i'
answer:
6


question:
Sentence: 'a man flying through the air on top of a skateboard'. Find frequency of the letter 'h'
answer:
3


question:
Sentence: 'the shop has many flowers and baskets of fruit'. Find frequency of the letter 'o'
answer:

3