In this task, you need to count the number of times the given letter appears in the given sentence.
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Question: Sentence: 'two metal  benches on an empty train platform'. Find frequency of the letter 'n'

Answer: 4


Question: Sentence: 'a young girl is brushing her teeth in this dated photo'. Find frequency of the letter 't'

Answer: 5


Question: Sentence: 'a person riding a surf board while holding a parachute'. Find frequency of the letter 'g'

Answer:
2