instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a man standing on a tennis court holding a racquet'. Find frequency of the letter 's'
answer:
2

question:
Sentence: 'a cat that is standing next to an open suitcase'. Find frequency of the letter 'e'
answer:
3

question:
Sentence: 'a french dip is shown with cilantro and onions'. Find frequency of the letter 'a'
answer:
3