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 small boy in a high chair eating a cupcake'. Find frequency of the letter 'i'

Answer: 4


Question: Sentence: 'a group of people standing on grass with a train in the background'. Find frequency of the letter 'n'

Answer: 6


Question: Sentence: 'a bed room that is filled with ancient cloth like sheets'. Find frequency of the letter 't'

Answer:
6