instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'three birds are sitting on a tree in a forest'. Find frequency of the letter 'h'
answer:
1


question:
Sentence: 'a tennis player that is running to get the tennis ball'. Find frequency of the letter 't'
answer:
7


question:
Sentence: 'a layered cake with many decorations on a table'. Find frequency of the letter 'e'
answer:

5