instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a giraffe shares a habitat with a zebra, an ostrich, and an okapi'. Find frequency of the letter 'e'
answer:
3

question:
Sentence: 'a baseball themed birthday cake is on a serving tray'. Find frequency of the letter 'g'
answer:
1

question:
Sentence: 'an all white horse standing in an enclosure'. Find frequency of the letter 'e'
answer:
4