In this task, you need to count the number of times the given letter appears in the given sentence.

Q: Sentence: 'a woman throwing a frisbee on a field'. Find frequency of the letter 's'

A: 1
****
Q: Sentence: 'two zebras standing around while a third zebra drinks from a pond'. Find frequency of the letter 's'

A: 3
****
Q: Sentence: 'an large office desk with multiple computers, books and paper'. Find frequency of the letter 'c'

A:
2
****