instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a young elephant is touching a bigger elephant with its trunk'. Find frequency of the letter 'i'
answer:
5


question:
Sentence: 'slices of orange are arranged on a plate'. Find frequency of the letter 's'
answer:
2


question:
Sentence: 'two dogs jump in the air to catch a frisbee'. Find frequency of the letter 't'
answer:

4