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: 'a stuffed animal sitting on an empty bed'. Find frequency of the letter 'u'

Answer: 1


Question: Sentence: 'the interior of a living and dining room'. Find frequency of the letter 'i'

Answer: 6


Question: Sentence: 'a group of people in equestrian wear posing for a photo'. Find frequency of the letter 'n'

Answer:
3