instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a little boy that has a toothbrush in his mouth'. Find frequency of the letter 'r'
answer:
1

question:
Sentence: 'a bedroom with a neatly made bed and a laptop'. Find frequency of the letter 'l'
answer:
2

question:
Sentence: 'a clock tower stands on top of a building under a cloudy sky'. Find frequency of the letter 'r'
answer:
2