instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a group of people are playing soccer on a beach'. Find frequency of the letter 'l'
answer:
2


question:
Sentence: 'some cubbies with towels in a blue bathroom'. Find frequency of the letter 'l'
answer:
2


question:
Sentence: 'group of small boys standing on a tennis court with rackets in hand'. Find frequency of the letter 'o'
answer:

5